Billing Coding and Reimbursement Guide MCI Screen. The difference was significant in early-onset pre-eclamptic women (p<0.05) rather than late-onset pre-eclamptic ones (p>0.05). Matias DS, Costa RF, Matias BS, et al. 2008;(3):CD006593. Prediction of pre-eclampsia, low birthweight for gestation and prematurity by uterine artery blood flow velocity waveform analysis in low risk nulliparous women. 2020;75(3):755-761. Mayer-Pickel et al (2018) stated that an imbalance of angiogenic placental factors such as endoglin, sFlt-1 and PlGF has been implicated in the pathophysiology of PE. Routine prenatal visits until delivery, after the first three antepartum visits. necessity for these services. Most likely you-ll include this fetal monitor use as part of labor management or the global ob package (such as 59400, Routine obstetric care including antepartum care, vaginal delivery [with or without episiotomy, and/or forceps] and postpartum care).Example: A patient at 38 weeks gestation presents to the ob-gyn saying her water has broken but she doesn't feel any contractions. Washington, DC: ACOG; October 2004. Discordance was identified by the birth weight difference from 20 %. The authors concluded that sFlt-1 and PlGF were influenced by various factors during the 1st trimester of pregnancy, which can be relevant for correct interpretation. ins.dataset.adClient = pid; Routine fetal and umbilical Doppler ultrasound examination in low-risk or unselected populations did not result in increased antenatal, obstetric and neonatal interventions, and no overall differences were detected for substantive short-term clinical outcomes such as perinatal mortality. ", CPT Code 0440T | Description & Clinical Information, CPT Code 26260 | Description & Clinical Information, CPT Code 78191 | Description & Clinical Information, CPT Code 72082 | Description & Clinical Information, CPT Codes For Remote Body And Limb Kinematic Measurement-Based Therapy, CPT Code 44140 | Description & Clinical Information. In addition to standard meta-analysis, the 2 primary outcomes and 5 of the secondary outcomes were assessed using GRADE software and methodology. The average salary for a Medical Billing Specialist is $39,188 per year in Koppel (United States). Therefore, you can report the initial care separately from the global ob period. A total of 17 observational studies (including 7,552 fetuses either diagnosed with suspected SGA (n = 3,461) or later diagnosed as a SGA neonate (n = 4,091)) met the inclusion criteria; no RCTs met the inclusion criteria. 7. Hemoglobinopathies (hemoglobin SS, SC, or S-thalassemia), Multiple gestation (with significant growth discrepancy), Post-term pregnancy (greater than 41 weeks gestation), Previous fetal demise (unexplained or recurrent risk), Amniotic fluid index (determination of the amniotic fluid volume), chitotriosidase activity in both maternal and cord serum and. Doppler ultrasonography in suspected intrauterine growth retardation: A randomized clinical trial. . ProviderOne You file all claims through the ProviderOne portal. These investigators searched MEDLINE, EMBASE and Cochrane databases from inception until March 2015 without language restrictions. Official Description The CPT book defines CPT code 26260 as: Radical resection of tumor, proximal or middle phalanx of finger. American College of Obstetricians and Gynecologists (ACOG). A CST or full BPP is considered medically necessary following an abnormal NST or modified BPP. CPT code information is copyright by the AMA. Physicians shall report the Healthcare Common Procedure Coding System/Current Procedural Terminology (HCPCS/CPT) code that describes the procedure performed to the greatest specificity 05101, 05201, 05301, 05401, The authors concluded that serum PLGF level was lower in women who subsequently developed severe PE early in the second trimester, suggesting its role in prediction of PE. There were statistically significant differences in uterine artery pulsatility index (UtA-PI) and ophthalmic artery first diastolic peak (PD1) mean values between the PE and control groups. This prospective cohort study included 262 pregnant women with a low risk of PE. Predictive value of ophthalmic artery Doppler velocimetry in relation to development of pre-eclampsia. 12. American College of Obstetricians and Gynecologists (ACOG). 2002;99(4):589-593. Medline, Embase, CINAHL and the Cochrane Library were searched for relevant citations without language restrictions. Testing is considered medically necessary beginning at 26 weeks gestation for pregnancies with multiple or particularly worrisome high-risk conditions. 200. Guidelines from the American College of Obstetricians and Gynecologists (ACOG, 1999) have concluded that, "[o]n balance, the available evidence suggests that primary antepartum surveillance of suspected intrauterine growth restriction with umbilical artery Doppler velocimetry can achieve at least equivalent (and possibly better) fetal and neonatal outcomes as primary antepartum surveillance based on results of the NST [non-stress test]. list-style-type: decimal; This was probably due to the low number of patients with PE, and the fact that PE results from various pathophysiologic mechanisms that may alter the markers in different ways. Management of prolonged pregnancy. American College of Obstetricians and Gynecologists (ACOG). 1987;1(8526):188-190. Broadly speaking, the global OB package covers routine maternity services, dividing the pregnancy into three stages: antepartum (also known as prenatal) care, delivery services, and postpartum care. Pediatr Int. N Engl J Med. The authors concluded that existing evidence does not provide conclusive evidence that the use of routine UAD ultrasound, or combination of umbilical and UAD ultrasound in low-risk or unselected populations benefits either mother or baby. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. In a prospective, first-trimester study, Allen and Aquilina (2018) examined the efficacy of biomarkers, arteriography and uterine artery Dopplers for predicting hypertensive disease of pregnancy, SGA and stillbirth. Value of third-trimester cerebroplacental ratio and uterine artery Doppler indices as predictors of stillbirth and perinatal loss. During the first 20 minutes of monitoring, the ob-gyn uses the external transducers and detects no fetal heart rate accelerations. The authors stated that this study had several drawbacks. window.ezoSTPixelAdd(slotId, 'adsensetype', 1); Reviews included between 2 and 265 primary studies, including up to 25,356,688 women in the largest review. Dildy GA. display: block; .newText { Participating providers are independent contractors in private practice and are neither employees nor agents of Aetna or its affiliates. The consent submitted will only be used for data processing originating from this website. These researchers carried out a systematic review to evaluate the quality of the evidence available to-date regarding the relationship between prenatal stress and maternal-fetal hemodynamics. The review found that uterine artery Doppler screening of high-risk women (e.g., history of chronic hypertension or preeclampsia, prior fetal growth restriction, or stillbirth) with singleton gestations appears to identify those at substantially increased risk for adverse pregnancy outcomes (Scicioneand Hayes, 2009). PMH Billing Scenario 3 Patient returns to LHD within 60 days of delivery for her postpartum visit.Patient has an IUD inserted at the postpartum visit in the FP Clinic. Evidence for admission to neonatal intensive care unit was assessed as of moderate quality, and evidence for the outcomes of caesarean section and pre-term birth less than 37 weeks was graded as of high quality. Our billers and coders have great experience which reduces your billing worries and you can focus only on patient care. The rate of PE was 2.5 % (13/528); 4 (0.8 %) had severe PE. Erskine RL, Ritchie JW. Before admitting her to the hospital, the ob-gyn evaluates the situation by placing an external transducer to determine if the mother is experiencing contractions. If the baby's heart rate still does not accelerate, the ob-gyn will determine this to be a -nonreactive- NST. Maternal arteriography was performed and serum was taken for the measurement of AFP, beta-hCG, PlGF, and PAPP-A levels. UTI, Asthma) during antepartum, Additional E/M visits for complications or high risk monitoring resulting in greater than, However these E/M services should not be reported until after the patient, to identify these visits as separately identifiable from, Inpatient E/M services provided more than 24 hrs before delivery. Catch-22: If youre using modifier [], Vaginal Cuff Repair via Abdominal Approach, Question: My ob-gyn did a surgical exploration of the abdomen with re-suturing of both the [], Question: If my ob-gyn sees a Medicare patient for a breast and pelvic exam, but [], Question: What do fetal non-stress tests (NSTs) entail? Most payers do not cover the NST unless your ob-gyn documented a specific reason,- Engstrom says. The authors concluded that blood flow of uterine artery and also myometrial and endometrial vasculature displayed lower impedance in patients with malignant endometrium, but these lower indices are not already adequate for using as diagnostic tests. The empirical results on DR at 10 % FPR were consistent with the modelled results. Arch Womens Ment Health. Int J Gynaecol Obstet. Townsend R, Khalil A, Premakumar Y, et al; IPPIC Network. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Serum PAPPA, -hCG, and AFP levels were not significantly different between the PE and control groups. Two strategies have been proposed by investigators as useful indicators of fetal anemia. During the first 20 minutes of monitoring, the ob-gyn uses the external transducers and detects no fetal heart rate accelerations. Karsdorp VH, van Vugt JM, van Geijn HP, et al. Mason GC, Lilford RJ, Porter J, et al. From a total of 2,444 citations identified, 126 reviews were included, reporting on over 90 predictors and 52 prediction models for PE. The PubMed/Medline, Embase, PsycINFO, Maternity and Infant Care, Trip, Cochrane Library, and CINAHL databases were searched using the search terms pregnancy; stress; fetus; blood; Doppler; ultrasound. Links to various non-Aetna sites are provided for your convenience only. The procedure is noninvasive and typically takes 20 to 40 minutes to perform. Retrospective studies of patients with 8 different types of primary or advanced solid tumors suggested that serum concentration of YKL-40 may be a new biomarker in cancer patients. Reston, VA: ACR; 2001. Laks MP, Cohen T. Noninvasive diagnosis of fetal anemia by Doppler ultrasonography. Role of Kleihauer test in Rhesus negative pregnancy. Overall, the test lasts 30-40 minutes, during which the ob-gyn monitors the fetal heart rate using external transducers. This test is rarely used in clinical practice at this time. Cochrane Database Syst Rev. Clin Perinatol. The AUC and DR of delivery with PE, at 10 % FPR, after screening by maternal factors, ophthalmic artery second to first PSV ratio and combinations with MAP, UtA-PI, serum PlGF and serum sFlt-1 were determined. Uni-variable and multi-variable logistic regression analyses were performed to determine which biophysical factors, and which of the factors among the maternal characteristics and medical and obstetric history, had a significant contribution to the prediction of PE in a multi-parametric model. 31. At least3 randomized clinical trials (RCTs) have evaluated the utility of umbilical artery Doppler velocimetry as a technique of antepartum fetal surveillance in pregnancies complicated by suspected intrauterine growth restriction. For 4 to 6 visits: Use CPT code 59425 For 7 or more visits: Use CPT code 59426 Once the appropriate code is selected, the below billing guidelines must be followed: When billing an E/M code for a patient seen 1-3 times, each date is reported individually with the corresponding visit date Save my name, email, and website in this browser for the next time I comment. Abnormal uterine artery Doppler studies in the first and second trimester have been associated with subsequent adverse pregnancy outcomes including preeclampsia, fetal growth restriction, and perinatal mortality. Baltimore, MD: Williams & Wilkins; 1996:433-442. van Asselt K, Gudmundsson S, Lindqvist P, et al. 1997;104(6):674-681. 2006;15(2):194-202. Maternal characteristics, serum concentrations of PAPP-A and free -hCG were ascertained and Ut-A Doppler, UA, and DV Doppler studies were performed. Combinations of these parameters do not further improve their screening efficiency. Services Excluded from the Global Obstetrical Package, The following services are excluded from the global OB package (CPT codes 59400, 59510, 59610, and 59618). 1995;16(3):195-202. First-trimester prediction of small-for-gestational age neonates incorporating fetal Doppler parameters and maternal characteristics. Inpatient Evaluation and Management (E/M) service provided within 24 hours of delivery. Logistic regression with step-wise selection was carried out to determine multi-variate models. Int J Gynaecol Obstet. Only approximately half (n = 67 (53.2 %)) of the reviews evaluated the quality of the included studies. Yliniemi A, Makikallio K, Korpimaki T, et al. Although the slope of the sFlt-1/PlGF ratio was not used in their algorithms, this value may be useful for enhancing predictive accuracy in a future larger scale study. For example, your ob-gyn sees a patient at 31 weeks gestation who complains that her fetus has not been moving much in the past few weeks. Special problems of multiple gestation. In a prospective, observational study, Sapantzoglou and colleagues (2021) examined the potential value of maternal ophthalmic artery Doppler at 19 to 23 weeks' gestation on its own and in combination with the established biomarkers of PE, including UtA-PI, MAP, serum PlGF and serum sFlt-1, in the prediction of subsequent development of PE. On the other hand, maternal serum YKL-40 levels were not elevated significantly, indicating that adipose-derived apelin was primarily involved in the vascular pathogenesis of early-onset pre-eclampsia than macrophage-derived YKL-40. Br J Obstet Gynaecol. A total of 145 women were left for analysis after exclusions; 14 developed PE, 23 pregnancy-induced hypertension (PIH), 64 SGA of less than fifth centile, 118 SGA of less than 10th centile and 3 stillbirth. When you report 59025 (Fetal non-stress test) for NST procedures, make sure you-re reporting them in the appropriate situations. Uterine and umbilical artery velocimetry in pre-eclampsia. The predictors with the best test performance were BMI greater than 35 kg/m2 , with a specificity of 92 % (95 % CI: 89 to 95 %) and a sensitivity of 21 % (95 % CI: 12 to 31 %); BMI greater than 25 kg/m2 , with a specificity of 73 % (95 % CI: 64 to 83 %) and a sensitivity of 47 % (95 % CI: 33 to 61 %); 1st-trimester UtA pulsatility index or resistance index of greater than 90th centile (specificity 93 % (95 % CI: 90 to 96 %) and sensitivity 26 % (95 % CI: 23 to 31 %)); PIGF (specificity 89 % (95 % CI: 89 to 89 %) and sensitivity 65 % (95 % CI: 63 to 67 %)); and placental protein 13 (specificity 88 % (95 % CI: 87 to 89 %) and sensitivity 37 % (95 % CI: 33 to 41 %)). Horio H, Murakami M, Chiba Y, et al. Ultrasound evaluation of the placenta in healthy and placental syndrome pregnancies: A systematic review. Literature on the 7 most studied serum markers (A-disintegrin and metalloprotease 12 [ADAM 12], free -subunit of human chorionic gonadotropin [f-hCG], Inhibin A, Activin A, PP13, placental growth factor [PlGF], and pregnancy-associated plasma protein A [PAPP-A]) and Ut-A Doppler was primarily selected. Gudmundsson S, Marsal K. Umbilical and uteroplacental blood flow velocity waveforms in pregnancies with fetal growth retardation. Subsequent codes related to this code include: 96373 - therapeutic, prophylactic, and diagnostic substance by intra-arterial injections and infusions Hypertension in pregnancy: diagnosis and management. "The patient reports fetal movement as an external monitor records fetal heart rate changes. Both the normal pregnant and pre-eclamptic subjects were subdivided into 2 groups. Am J Obstet Gynecol. One of the belts is used for measuring fetal contractions and movements. Omtzigt AM, Reuwer PJ, Bruinse HW. If a physician provides any component of antepartum along with postpartum care, but does not perform the delivery, then the services should be itemized by using the appropriate counterpart care code and postpartum care code. Eur J Obstet Gynecol Reprod Biol. 2014;33(4):467-475. The clinical utility of these tests remains unclear. Diagnostic Radiology (Diagnostic Imaging), Genomic Sequencing and Molecular Multianalyte Assays, Multianalyte Assays With Algorithmic Analyses, Immunization Administration for Vaccines/Toxoids, Hydration, Therapeutic, Prophylactic, Diagnostic Injections and Infusions, and Chemotherapy and Other Highly Complex Drug or Highly Complex Biologic Agent Administration, Physical Medicine and Rehabilitation Evaluations, Education and Training For Patient Self-Management, Special Services, Procedures, and Reports (Miscellaneous Medicine), Case Management (Medical Team Conferences), Non-Face-to-Face Evaluation and Management, Delivery/Birthing Room Attendance and Resuscitation, Inpatient Neonatal and Paediatric Critical Care, CPT Code 21076 | Description & Clinical Information, CPT Code 27202 | Description & Clinical Information, CPT Code 95819 | Description & Clinical Information, (2022) Billing Guidelines For Reclast, Zometa (Concentrate), And Aclasta, How To Bill Medical Records Requests | Descriptions & Billing Guidelines (2022), Ambulance Modifiers & Codes | How To Bill Ambulance Services (2022), HCPCS Code l3908 | Description & Billing Guidelines, How To Code Weight Loss ICD 10 (2022) List With Codes & Guidelines, (2022) How To Code Thrombocytopenia ICD 10 List With Codes & Guidelines, (2022) How To Code Syncope ICD 10 List With Codes & Guidelines. There were no group differences noted for the review's primary outcomes of perinatal death and neonatal morbidity. or call toll-free from U.S.: (800) 762-2264 or (240) 547-2156 2004;191(2):661-667; discussion 667-668. Youssef A, Righetti F, Morano D, et al. Obstet Gynecol Clin N Am. Metabolism. In a prospective, clinical study, Musilova and Hodk (2007) evaluated the clinical utility of Doppler velocimetry as a comprehensive test for the prediction of discordant twins. 59510 Routine obstetric care including antepartum care, cesarean delivery, and postpartum care. The fetal heart rate tracing is then evaluated for accelerations of the fetal heart rate corresponding with fetal movement. Umbilical artery Doppler flow velocimetry has been adapted for use as a technique of fetal surveillance, based on the observation that flow velocity waveforms in the umbilical artery of normally growing fetuses differ from those of growth-restricted fetuses. These services are reported with codes 59025 (Fetal non-stress test) or 59020 (Fetal contraction stress test). MD Lindheimer, JM Roberts, FG Cunningham, eds. .newText { Randomized and quasi-randomized controlled trials of Doppler ultrasound for the investigation of umbilical and fetal vessels waveforms in unselected pregnancies compared with no Doppler ultrasound were selected for analysis. Ob-gyns often use a fetal monitor to determine if a woman is in labor, but that doesn't mean you should report 59025. The review noted, however, thatfurther study is needed to determine which high-risk conditions are amenable to such screening, what testing regimen is optimal for a normal or abnormal test in these women, and what interventions based on these findings will improve pregnancy outcomes. The feasibility of long-term fetal heart rate monitoring in the home environment using abdominal electrodes. Myers ER, Blumrick R, Christian AL, et al. However, if routinely performed on all patients without distinct medical necessity, this code is not separately reported. In a prospective cohort study, Bezircioglu et al (2012) examined the diagnostic value of blood flow measurements in endometrial, myometrial and uterine vasculature by trans-vaginal Doppler ultrasonography in the differentiation of the neoplastic endometrial pathologies in women with post-menopausal bleeding. 2000;92(1):83-89. Helsinki, Finland: Duodecim Medical Publications Ltd.; April 3, 2000. Mean risk for mild PE was 8.8 % 6.4, mean risk for severe PE was 38.6 % 4.3. The false positive rate has been shown to increase following 33 weeks gestation. Ultrasonographic surveillance in red blood cell alloimmunization. Smokers had significantly elevated PlGF-values (p < 0.001). Together, these 3 biochemical markers are intended to contribute to accurate prediction of risk for early onset preeclampsia. If the patient is simply hooked up to a monitor during her hospital stay and the ob-gyn occasionally looks at the strip, you should consider that part of her exam and not a separately billable test. list-style-type : square !important; The authors concluded that existing evidence does not provide conclusive evidence that the use of routine umbilical artery Doppler ultrasound, or combination of umbilical and uterine artery Doppler ultrasound in low-risk or unselected populations benefits either mother or baby. Billing for service without the global package: When the patient transfers care mid-pregnancy: . 59025 : Fetal non-stress test: 76805: Ultrasound, pregnant uterus, real time with image documentation, fetal and maternal evaluation, after first trimester (> or = 14 weeks 0 days), transabdominal approach; single or first gestation + 76810: each additional gestation (List separately in addition to code for primary . Smith-Leviton M, Petrikovsky B, Schneider EP. 18. 93015. Proper billing and submission guidelines must be followed. These coding rules are published within the Medicare Claims Processing Manual, Current Procedural Terminology (CPT ) by the American Medical Association (AMA) and ICD-10-CM guidelines governed by Medicare and Medicaid Services (CMS) and the National Center for Health Statistics (NCHS). Global OB care should be billed after the delivery date/on delivery date. For 4 to 6 visits: Use CPT 59425, This code must not be billed by the same provider in conjunction with one to three office visits, or in conjunction with code 59426. Impact of reverse end-diastolic flow velocity in umbilical artery on pregnancy outcome after the 28th gestational week. In a systematic review and meta-analysis, Kalafat and colleagues (2018) determined the accuracy of ophthalmic artery Doppler in pregnancy for the prediction of PE. Mean arterial pressure (MAP) and maternal weight (p=0.001) were significantly associated with PIH (DR 48 %, AUC 0.76, 95 % CI: 0.65 to 0.86). Third, it could be argued that the use of multiple likelihood ratios would be an inadequate approach, as they may not be totally independent from each other (e.g., CPR values may also depend on uterine perfusion reflected by UAD). Ozcan T, Thornburg L, Mingione M, Pressman E. Use of middle cerebral artery peak systolic velocity and intrauterine transfusion for management of twin-twin transfusion and single fetal intrauterine demise. Saade GR. Aetna considers ophthalmic artery Doppler experimental and investigational for prediction of pre-eclampsia becauseits effectiveness for this indication has not been established. This visit included recording of maternal demographic characteristics and medical history, ultrasound (US) examination for fetal anatomy and growth, assessment of flow velocity waveforms from the maternal ophthalmic arteries, and measurement of MAP, UtA-PI, serum PlGF and serum sFlt-1. Receiver operating characteristic curve analysis showed that the 3rd trimester sFlt-1/PlGF ratio yielded the best detection rate (DR) for PE at a fixed false-positive rate (FPR) of 10 %, followed by the 2nd trimester sFlt-1/PlGF ratio, sFlt-1 level, and PlGF level. Angiogenic marker prognostic models in pregnant women with hypertension. Arch Gynecol Obstet. Multi-variate logistic regression analysis identifies nulliparity and AA ethnicity (p < 0.001), PAPP-A multiple of the median and bilateral notching (p < 0.05) as determinants of SGA infant. The modelled performance of screening for PE was also estimated. Middle cerebral artery Doppler velocimetric deceleration angle as a predictor of fetal anemia in Rh-alloimmunized fetuses without hydrops. Biometrical measurements and Doppler velocimetry of umbilical artery (UA) and middle cerebral artery (MCA) were performed in twins in third trimester. There was no available evidence to assess the effect on substantive long-term outcomes such as childhood neurodevelopment and no data to assess maternal outcomes, particularly maternal satisfaction. Clinical and demographic data were recorded for both groups. Report CPT 59025 if a fetal non-stress test (NST) was performed in which a provider measures the fetal heart rate in response to its movements. The review concluded: "At this time, the evidence does not support routine screening with uterine artery Doppler in any particular group of patients. Deren O, Onderoglu L. The value of middle cerebral artery systolic velocity for initial and subsequent management in fetal anemia. Kuc S, Wortelboer EJ, van Rijn BB, et al. Br J Obstet Gynaecol. NST Procedure Code 59025 Components of a NST - V i biliVariability Short term variability (STV) . The ob-gyn admits her to the hospital and places the external transducer on the woman's abdomen, giving her medication to halt the labor. Repeat testing is also considered medically necessary for any significant deterioration in the maternal medical status or any acute diminution in fetal activity, regardless of the amount of time that has elapsed since the last test. Waltham, MA: UpToDate; reviewed December 2019. Perry H, Binder J, Kalafat E, et al. Clin Exp Obstet Gynecol. Two independent reviewers selected studies, extracted data and assessed quality. 2021;57(1):75-83. Fetal movement assessment. ACOG Practice Bulletin No. Norwitz ER. Additional history was obtained through participant questionnaires, and follow-up occurred to discharge post-delivery. Yes. Stamford, CT: Appleton & Lange; 1999:201-227. Acta Obstet Gynecol Scand. Detection rate (DR) was 72 % for a false-positive rate (FPR) of 15 %, an area under the curve (AUC) of 0.81 (95 % CI: 0.69 to 0.93). 2013;32(9):1593-1600. Guidelines from the ACOG have concluded that uterine artery Doppler is not an effective method for identifying women at risk for eclampsia. Literature searches returned 338 relevant citations with 32 considered in full; 13 studies met search criteria, (85, 846 women, 508 stillbirths) and were included in the review. Last Review10/26/2022. Penning S, Garite TJ. MEDICARE E CODES cpt 99396 medicare. A total of 6 articles were included in this meta-analysis. These investigators examined if incorporation of fetal umbilical artery (UA) and ductus venosus (DV) Doppler improves SGA prediction. While both sites followed a very similar protocol with regards to timing of delivery, the decision was at the discretion of the individual clinicians, and not standardized to the study. . Nevalainen J, Korpimaki T, Kouru H, et al. ACOG guidelines (1999) state that, "[i]f umbilical artery Doppler velocimetry is used, decisions regarding timing of delivery should be made using a combination of information from the Doppler ultrasonography and other tests of fetal well-being, such as amniotic fluid volume assessment, NST, CST [contraction stress test], and BPP [biophysical profile], along with careful monitoring of maternal status.
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