purple line dilation picture. But how in the world does that work? Well, as the baby descends into the deep pelvis, the purple line rises up from the outskirts of the anus. purple line dilation picture

 
But how in the world does that work? Well, as the baby descends into the deep pelvis, the purple line rises up from the outskirts of the anuspurple line dilation picture  same size and shape

' In other words, the longer the line, the closer to birth a baby is. Express this measurement in terms of cm in lowest form of /b. I’ve got a purple line now, not sure if it’s always slightly there, wish I’d have checked it while. ️The purple line is a red–purple spot that appears around the anus during labor and “travels” along the cleft of the buttocks in parallel with progression o. The mapping notation is: ( x, y) → ( 2 x, 2 y) Example 7. To be honest- even if the line correlates to labor and dilation, if you’re not having consistent contractions then it doesn’t really matter. The World Health Organization emphasizes that the number of vaginal examinations should be limited where it is necessary. A dilation is a type of transformation that changes the size of the image. Oct 17, 2022 at 9:57 AM. A. Hi everyone! A friend told me about this theory that a purple line appears in your butt crack moving towards your lower back as your cervix dilates. 60GHz. Basically, the theory is that starting at 3-4cm of…Purple line dilation: Has anyone ever seen or heard of this trick. Accuracy of purple line to. This is my second baby and I have never heard of this but just today noticed that if i spread my cheeks lol. . three resulting images after different dilation operations (by the dilation operators in Fig. 0001). Congruent. Possible signs and symptoms may include: Pain. Author L Hobbs. 7 min. @JellyPi, I can’t even reach around or under me to even get a good picture of that area lol let me know if you have success! But apparently if the line is longer that’s approximately how much you’re dilated according to. I personally never heard about it until this pregnancy. To locate the point A', we draw a line segment from P to A, and extend the line segment through A. , weekdays and weekends, as needed. Reflection - The image is a. To perform a dilation on a coordinate plane, you need to know two pieces of information. Anyone use this in labor to check for dilation instead of cervical checks? I had my third baby last month and decided to forgo cervical checks entirely since they were just an inconvenient disappointment whenever I was checked during the first 2 births haha. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. Manage the Lesson: Throughout the lesson students are reintroduced to dilations. It is a purple or brownish line (mostly depending on skin color) that extends from a woman’s anus upwards to the top of the cleft between her buttocks! To be. Touch device users, explore by touch or with swipe gestures. We locate B' and C' using a similar procedure. Little things like uploading a profile picture make the community a better place. Solution. We found a moderate positive pooled correlation between the purple line length with cervical dilatation (r = +0. When you’re looking at the screen, the fetal heart rate is usually on the top and the contractions at the bottom. 3 cm when the. Cervical dilation with purple line. Alllyy38. That Was Intense! – 40-Week Pregnancy Vlog // 8. I’ve been trained a lot differently than this quiz! Stage 1 (early labour): baby engages, contractions begin, bowels are cleared, loss of mucous plug, dilation <5cm. 3% and 89. katcent. katcent. Cervix dilation symptoms: What does cervical dilation feel like and how to check if you are dilatingWhich statements are true regarding undefinable terms in geometry? Select two options. It tends to appear as a bluish red or pink color in a lacy or marbled pattern. 68). 68). From the table above, when a. Always look for other signs that labor is progressing and don’t rely on the purple line alone (mucousy birth show, strong surges or your waters have released) and growing pressure in the bum as a sign of a progressing labor. I was super curious about this, so I was reading about it and it actually sounded like a pretty cool thing, so I decided to check myself. Please Note – This guide includes an extensive selection of purple line dilation pictures from real world birth journeys. Diabetic retinopathy (die-uh-BET-ik ret-ih-NOP-uh-thee) is a diabetes complication that affects eyes. However, my massage therapist is a doula and said that a little hack to know if you’re really in labor is to, while in a contraction, feel your pirformous muscle (Google it, it’s in your butt) and if it’s also. Posted 9/27/22. As are all things that have to do with childbirth . The cervix is the opening to the womb. 4%) women and initially absent in three (6. The cervix is the opening to the womb. The Purple Line light rail has been a long-anticipated addition to the Maryland public transit system. For women either in spontaneous or induced labour, the pooled mean length of the purple line was more than 9. Hello all, first timer here! I am currently 32 week and had read about the purple line of dilation that appears above your anus and grows up. This purple line starts at the anus and goes up the back of the body, ending at the cleft of the buttocks. The polygon below. Pregnancy. …5 - Click on the button "0, 1 or 2 reflections" in order to have two reflections. 1002/ijgo. Oh the ways to waste my time. Therefore, this study aimed to determine the. 4 cm when the cervical dilatation was 9-10 cm. At first, diabetic retinopathy might cause no symptoms or only mild vision problems. draw a line. The monitor is connected to the GPU with a DisplayPort cable. This can lead to a watery, irritated and/or chronically infected eye. . Monitor: Dell U2713HM. From time to time, horizontal lines appear on the screen making the computer unusable at all until the lines disappear after minutes or hours. Lying down often relieves pain. Back Community Resources Portland Birthing Centers Postnatal Vitamins Lactation Supplements How To Check Dilation Purple Line Dilation Yoni Steaming Full Spectrum Doula Giving Birth at Home Prenatal Yoga. 4 cm when the cervical dilatation was 9-10 cm,. My partner recently noticed this line all the way up my booty crack, this is new and ig I’m wondering if there’s really any correlation between tha. Evidently there are scientific studies on it and it’s not just an old wives tale. There are five different transformations in math: Dilation - The image is a larger or smaller version of the preimage; "shrinking" or "enlarging. They conducted a small study with 48 women in spontaneous labour and noted that the purple line was seen on 89% of occasions, was completely absent in five women (10%), and initially absent in three (6%). May 11, 2021 at 8:24 PM. Purple Line Theory: Transitioning From Pregnancy to LaborAll 10+ how to check for purple line dilation Advanced Guide Ngô Gia T. Hobbs Line – Also known as the Red/Purple Line in Pregnancy. various other. Please Note – This guide includes an extensive selection of purple line dilation pictures from real world birth journeys. This longitudinal study observed 144 women either in. kjpp9. 3 years ago. 3 cm on average across all 109 women. 2 replies. For women either in spontaneous or induced labour, the pooled mean length of the purple line was more than 9. show() will block the REPL until you close the image. Explain why point A and A2 are in the same position. The picture below shows a dilation with a scale factor of 2. mlmc-22. I have already tried reconnecting the cable (HDMI) and updating my graphics card driver. The. For example, if the baby is mid-pelvis (between numbers -1 to +1) I would adjust to an asymmetrical lunge position. Mine is measuring at 7. now draw a line perpendicular to the first line that passes through point g (which is not at the intersection). medications that widen blood vessels. Where a purple line will show up in your butt crack and the higher it goes the more dilated you are? Was it accurate? I have been getting contractions every night that stop once I go to bed and my hubby checked me last night and you “purple line” is almost to the top if we go by. 2% sensitivity, 45. Where the line is present, it may provide a useful guide for clinicians of labour progress along side other measures. [4] X Research source. I haven’t heard about the purple line dilation until this week and figured I would check due to a lot of discomfort and back…Search titles only; Posted by Member: Separate names with a comma. The association between the purple line and labor is more about the baby's station in the pelvis, not necessarily dilation numbers. It tells you nothing about what came before that check (when you compare to other labors or women) and it tells you nothing about what is to come. The “purple line” is said to start appearing when your cervix is between zero and two centimeters dilated. May 14, 2023 at 12:44 PM. From what I read the line appears because of. purple line pregnancy. The purple line is a line of dark red or purple discolouration which can be seen starting from the maternal anal margin and it extends upwards between the. As your baby’s birthday approaches and the big event of childbirth draws near, you can also tell if you are dilating by the purple line. It might sound like an old wives’ tale but the purple line can be used to measure cervical dilation; it’s a method that’s backed by research. 39 weeks and 4 days Prenatal update – Only 1 cm dilated. Ever seen it? Looks different on white skin vs black skin!Back to post Original poster's comments (6) k. Thus, we get the general formula of transformations as. transformation that will change the orientation of. 2018 May;141(2):250-251. This time I had my midwife check my purple. Both of these are the exact same size, and have the same ratios. purple line pregnancy. I'm not sure how legit it is, but I've Google it and found lots of different sources and pics. Specs: i5-9600k 1070 Ti MSI z390 Monitor: msi optix mag241c . 3% of cases in active phase of labor. Basically, the theory is that starting at 3-4cm of dilation, a dark purple/red lines appears in your buttcrack. adidas racer tr21 primegreen samsung nexus 10 battery; purple line pregnancy; on 8 Jul 2022; By ; baylor scott and white legal department;Tweet. The points A', B', and C' appear to be collinear. How accurate is the Purple Line dilation? Some studies have shown that the overall accuracy for cervical dilatation is between 48% to 56% with ± 1 cm error, to 89. We explore the tripartite entropic uncertainty and genuine tripartite quantumness of Dirac fields in the background of the Garfinkle–Horowitz–Strominger (GHS) dilation space-time. Never heard of this before. What color is the contraction line? red Contractions are in red. Pregnancy Pillows. CryptoMeasuring this line, called the purple line or the bottom line, is a non-invasive way for caregivers to assess cervical dilation. I’ve also feel pelvic pressure and had diarrhea. 60 centimeters which says I could be anywhere from 4cm-7cm dilated. I can feel the baby down low and. It's caused by damage to the blood vessels of the light-sensitive tissue at the back of the eye (retina). This line can tell a midwife or professional, by the length of the line, how. The application of this method is used in photography, arts and crafts, to create logos, etc. Springbabyduesoon. A point has one dimension, length. Sep 6, 2021 at 9:14 PM. Purple Line Dilation Pictures While its called the purple line the color and appearance of this thin line can look quite different depending on the individual. The further along you are in dilation, the higher the line extends. @mickchick, this makes a lot of sense because I noticed this a few days after feeling like baby was head down. We place A' on this line so that the distance from P to A' is twice the distance from P to A. But how in the world does that work? Well, as the baby descends into the deep pelvis, the purple line rises up from the outskirts of the anus. The line starts at the anus and moves up the cleft. For women either in spontaneous or induced labour, the pooled mean length of the purple line was more than 9. 5% to 91. So what happened exactly and how likely. D is the midpoint of line BC and E is the midpoint of line AC. One method measures the length of a purple line that appears along a laboring woman’s natal cleft (or the crease/crack of her butt) when she is about 2 centimeters dilated. As weird as it sounds, a reddish or purplish line can appear in the natal cleft—aka butt crack—of some pregnant people as their cervix dilates and they come closer to giving birth. 0001) and station of the fetal head (r = +0. Should I be worried I'm about to go. Evidently as you start dilating a…I read online that on your natal cleft (bum crack ) if you get a purple line starting at your anus up to top of your bum crack indicated dilation w. To provide firm support to professionals and pupils around the globe, we have developed a free online dilation calculator so that they could get the awesome benefit of this opportunity. Tummy Butter for Stretch Marks . How to Check a Cervix for Dilation: 15 Steps (with Pictures) By Little Eagles March 28, 2023. 21. Available in white or transparent. Advertisement. One of the less commonly known changes is the purple line, which can appear on the belly during pregnancy. You could be dilated to a 3 or 4 or more. but their results showed a medium positive correlation between the length of the purple line, the dilation of the woman’s cervix and the station of the baby’s head. Jun 7, 2015 at 5:11 AM. So of course I had to investigate mine lol. I’m 35+2w and have a VERY visible dark purple line but wanted to know if anyone has the same? 😂 If you wouldn’t mind checking your bums. Lying down often relieves pain. Aug 26, 2022 - During labor you may develop a purple line from your anus to your natal cleft. During this stage, dilation will move from 0 to 3-4 centimeters. 7% and this accuracy is. 32–0. 15 Purple Line Dilation – What is the. For example, a circle with radius 10 unit is reduced to a circle of radius 5 unit. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. Construction on Maryland’s Purple Line, already 4½ years behind schedule, is facing another seven months of delay that could push back the light-rail line’s opening to mid-2027. Advertisement. Back to post Original poster's comments (11) Leanne2218. k. For some women though, it doesn't show up until. Purple Line Dilation Chart. Normally – you do have a bit of a line there. Search titles only; Posted by Member: Separate names with a comma. Anyone else got the. Colds in Toddlers. Basically as the baby descends, a red/purplish (or perhaps brown depending on skin color) line creeps up from the anus to the top. Purple line dilation. 5% positive. Both of these are the exact same size, and have the same ratios. show() method saves the image as a temporary file and displays it using your operating system’s native software for dealing with images. Advertisement. 1% positive predictive value, 51. i realised that only black. Cervix Dilation Sign #6: The purple line. GPU: MSI N680 Power Edition. Use a purple line dilation chart to turn your purple line measurement into an estimate of how dilated your cervix currently is. Display results as threadsBrowse 1,500+ dilation stock photos and images available, or search for pupil dilation or eye dilation to find more great stock photos and pictures. 7% and this accuracy is reduced with the increase of cervical dilatation (5, 6). This line starts at the anus and moves up the cleft at the beginning of the second stage of labour (Byrne and Edmonds 1990). It is congruent to the pre-image and. By measuring the length of this purple line and comparing it with the total length of a woman’s natal cleft (or the entire length of the crease of her butt), a midwife can determine approximately how dilated a. This is a very annoying issue, making the DELL XPS completely unproductive. 21. A reflection is a transformation where every point is the same distance from the center line. What the fuck guys. A mass in the scrotum. ". The further up the line reaches, the closer to labor you are. Truth or myth?! s. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. It is written by Mindy Cockeram, LCCE. The Purple Line or Bottom Line. (2)Sep 14, 2017 - Image result for purple line dilation pictureAs part of the Purple Line project, bike lanes will be installed on Campus Drive from the University of Maryland Global Campus on Adelphi Road to Baltimore Avenue. Alright let me hear your stories! Any truth to the purple line on your bottom correlating to dilation? Do you have a purple line? Honestly I checked and I can’t tell! There’s no dark purple like it looks more like a raw line? But I don’t regularly check back there lol so I’m not sure if that’s always. Assessing cervical dilatation without Vaginal. Or rather – your butt crack. What is the purple line. A. Please Note – This guide includes an extensive selection of purple line dilation pictures from real world birth journeys. The preimage and image figures. By measuring the length of this purple line and comparing it with the total length of a woman’s natal cleft (or the entire length of the crease of her butt), a midwife can determine approximately how dilated a. I posted a question box in my Instagram stories a while back, so we will be covering a lot of topics from what we did for labor prep, how I managed pain, lots of questions on homebirth, and the birth process in general. To provide firm support to professionals and pupils around the globe, we have developed a free online dilation calculator so that they could get the awesome benefit of this opportunity. A blocked tear duct can also be associated with crusty eyes. to 7 p. Have you seen. adidas racer tr21 primegreen samsung nexus 10 battery; purple line pregnancy; on 8 Jul 2022; By ; baylor scott and white legal department;purple line pregnancy. Hi everyone! A friend told me about this theory that a purple line appears in your butt crack moving towards your lower back as your cervix dilates. 0% negative predictive value and in the second stage of labor it has 87. a. Given the points A ( 12, 8) and B ( 8, 4) on a line undergoing a dilation to produce A ′ ( 6, 4) and B ′ ( 4, 2), write the notation that represents the dilation. A dull, aching pain or discomfort is more likely when standing or late in the day. I remember seeing. The back of your hand should be facing your spine, and your palm should face upwards. In summary, the purple line in labor is a faint line that can appear on a pregnant woman’s abdomen during the later stages of pregnancy and during labor. I know there's been a lot of discussion about this purple dilation line on here, so I'm curious if anybody has had the purple line, but did not go into labor any time remotely soon? They say it really is indicative of being dilated, but with all 4 of my prior pregnancies, I was not aware of "the line". The secondary outcome was to determine the association between the purple line length and the fetal head descent, and to calculate the pooled mean length of the. There was a significant correlation between the length of the purple line and cervical dilatation and the station of the fetal head. Author Sara Wickham. ” It showed the purple line appeared in 75. That Was Intense! – 40-Week Pregnancy Vlog // 8. Okay mamas, who knows about this? How accurate was it? I just learned about it and looked and I have a definite purple like at 34 weeks. Purple line in butt crack=dilation? s. The possibilities offered to a mother when giving birth are increasingly different. If you decide you’d like more images than are included in our standard package, you can upgrade package at any time. Significant correlation was detected between the length of the purple line and cervical dilatation and the station of the fetal head. The results of this study add to the growing body of research on progression of labour that the Purple line appeared in most of Iranian women during the active phase of labour and there was a positive correlation between length and width of the purple line and station of the foetal. adidas racer tr21 primegreen samsung nexus 10 battery; purple line pregnancy; on 8 Jul 2022; By ; baylor scott and white legal department;Mark a point as the center of rotation. I did cause what is there to lose 🤷🏼‍♀️ Then she sent me down an educational spiral…Latent phase: Also known as early labor, this is when your cervix is effacing and starting to dilate. Protect You And Your Baby By Getting The COVID-19 Vaccine And Booster While Pregnant. PMID: 17285929 No abstract available. can we use the purple line as a sign of progression Labor or cervical dilation instead of doing digital cervical checks let's chat about it the purple line is a noninvasive method to assess the progression of Labor now this purple line is supposed to start around the anus and then progress up the cleft of the buttocks as the fetal head comes lower into the. A dilation can be either an enlargement, which results in an image that is larger than the original figure, or a reduction, which results in an image that is smaller than the original figure. Feb 26, 2022 at 4:13 PM. Work continues on the Purple Line Glenridge Station located near the corner of Veterans Parkway (MD 410) and Annapolis Road (MD 450) through November Work may occur 7 a. @samanthahicks88, Since 35 weeks my "butt crack line"has suggested I'm 10cm lol, I'm sure it works for some people but not me! Got checked at36 weeks and I was closed and not dilated at all! Let me tell you it freaked me out when I first saw it hahaha. Breastfeeding 101 Birthing From Within Newborn Care Classes Sleep Training Methods Online Birthing Classes Resources Community Resources Portland Birthing Centers Postnatal Vitamins Lactation Supplements How To Check Dilation Purple Line Dilation Yoni Steaming Full Spectrum Doula Giving Birth at Home Prenatal Yoga Placenta. His vision It is accompanied with other types of signs and events that occur throughout the dilation process. . Purple line and dilation: I've just been reading about the 'purple line' that can sometimes be seen above the anus in women as an indication of dilation. The line integral of the linear absorption coefficient p. i am already using a second monitor and it doesnt have a problem like this only laptop screen. purple line pregnancy. Purple Line - Anyone? : Have any of you heard of the “purple line” dilation identifier? I linked a picture with the Instagram account/photo about the purple line along your bum crack to see how far dilated you are. Advertisement. Aug 26, 2022 - During labor you may develop a purple line from your anus to your natal cleft. Is it all in my head?The purple line was first discussed in the literature (to my knowledge, but please see below) in a letter written to The Lancet by Byrne and Edmonds. Purple Line Theory: Transitioning From Pregnancy to Labor The purple line theory is a simple method for self checking dilation that could be used by birthing people and their supporting people that is less intrusive than. A smaller varicocele may be too small to see but noticeable by. 4 cm when the cervical dilatation was 9-10 cm, whereas it was more than 7. E. Where a purple line will show up in your butt crack and the higher it goes the more dilated you are? Was it accurate? I have been getting contractions every night that stop once I go to bed and my hubby checked me last night and you “purple line” is almost to the top if we go by. adidas racer tr21 primegreen samsung nexus 10 battery; purple line pregnancy; on 8 Jul 2022; By ; baylor scott and white legal department;purple line pregnancy. ". Necrosis refers to tissue death, which happens when blood flow to your stoma is reduced or cut off. I’m 35w 5d and mine is dark and long lol. A point has one dimension, length. Go counterclockwise for positive angle measures and. I’ve had a pretty high purple line since 30 weeks, and so it wasn’t accurate for me. So for example: at a dilation of 1-2 cm, the purple line was 5. The . So I had a look in the mirror and it looks like I. Google says this has to do with how far dilated you are but I'm only 6 months along and have no signs of impending labour. The study described in this paper aimed to assess in what percentage of women in labour a purple line was present, clear and measurable and to determine if any relationship existed between the length of the purple line and cervical dilatation and/or station of the fetal head. adidas racer tr21 primegreen samsung nexus 10 battery; purple line pregnancy; on 8 Jul 2022; By ; baylor scott and white legal department;purple line pregnancy. Cutis marmorata is a condition that causes temporary skin discoloration. View traffic shift here. Assessing cervical dilatation without VEs: watching the purple line Pract Midwife. TLDR. In this article, we will discuss the purple line and its relationship to cervical dilation. What is the purple line in labor? Purple line is one of the non-invasive methods to assess the progress of cervical dilatation and foetal head descent in labour (Shepherd et al. The most basic operations of morphology are dilation and erosion (Dilation and Erosion), which are often used for noise reduction, segmentation, maximum or minimum value regions, and image gradients. But how in the world does that work? Well, as the baby descends into the deep pelvis, the purple line rises up from the outskirts of the anus. I have my first cervical exam on Friday and I am currently 36 weeks. 91% sensitivity, 39. Measure your cervix dilation with this chart on your pregnancy journey. A medium positive association was found among the purple line. It is interesting to note that Hawking radiation leads to the decay of quantum nonlocality in the physically accessible region while preserving its total. The 16-mile light rail will connect Montgomery County and Prince George’s County with stops stretching from Bethesda to New Carrollton. Note that the onset of pupil dilation precedes motion onset. 50; 95%CI: 0. Purple line indicating dilation…. When this happens, it’s usually within the first few days after surgery. For women either in spontaneous or induced labour, the pooled mean length of the purple line was more than 9. However, my massage therapist is a doula and said that a little hack to know if you’re really in labor is to, while in a contraction, feel your pirformous muscle (Google it, it’s in your butt) and if it’s also. Necrosis. 5. In this episode, I am joined by my husband to share our daughter’s birth story. This start randomly during the day. 3/5 (35 votes) How do midwives check for dilation? Midwives check for dilation during labor by measuring the opening of the cervix during a pelvic exam. A smaller varicocele may be too small to see but noticeable by. Little things like uploading a profile picture make the community a better place. This appearance has been thought to occur because of the vascular congestion at the base of the sacrum. It’s located between the vagina and the uterus and plays a crucial role in pregnancy and labor. 3% of people during the active phase of labor and appearance of the purple line in the prediction of labor progress had 90. There are four types of transformations: translations, rotations, reflections, and dilations. . Thanks! 5:26AM. Robyn+2 member. Venous lake of the lip is a vascular defect or anomaly which can develop for several reasons. November 16, 2021. Angle your fingers back towards your anus to most effectively feel your cervix. The possibilities offered to a mother when giving birth are increasingly different. This is the set of all points between x=0 and x=1 at any time t. For women either in spontaneous or induced labour, the pooled mean length of the purple line was more than 9. Measure your cervix dilation with this chart on your pregnancy journey. A line has length and width. Cervix dilation. This occurs when the eye’s drainage system for tears is obstructed and tears cannot drain normally. Also doctors make a proper use of it for examining a patient’s eye better. There are various alternatives to both. Posted 7/21/13It is a purple or brownish line (mostly depending on skin color) that extends from a woman’s anus upwards to the top of the cleft between her buttocks! To be precise, it does not appear in all women! According to research, it appears in about 76% of all women when they are dilating (1). My midwife pointed out my purple line while I was in labour with my 4th while I was leaning over the back of the bed puffing on gas so then we had 2 midwives and my husband staring at my crack, so glam . When the machine prints out graph paper, you’ll see the fetal heart rate to the left and the contractions to the right. Try other monitor, if you have extra one. image. I recently saw a video that said when you start to dilate you will get a purple line that will run from. f (x) =a (bx-h)n+k. Newer Than: Search this thread only; Search this forum only. ' The report then goes on to talk about the 'significant correlation between the station of the fetal head and the red line length. Suppose we need to graph f (x) = 2 (x-1) 2, we shift the vertex one unit to the right and stretch vertically by a factor of 2. Resources. . Watching the purple line. I just checked my behind and I have one but definitely purple and definitely used to not have. Therefore, this study aimed to determine the. png --width 0. purple line pregnancy what is the butterfly in wordscapes tv cabinet design for living room Navigation. In fact some care providers use something known as the purple line. It is caused by an increase in the production of melanin, and is not related to the cervix or the dilation of the cervix. okay I'm super curious. 5 - Click on the button "0, 1 or 2 reflections" in order to have two reflections. This appearance has been thought to occur because of the vascular congestion at the base of the sacrum. How accurate is the purple line dilation? Some studies have shown that the overall accuracy for cervical dilatation is between 48% to 56% with ± 1 cm error, to 89.