Podcast
Questions and Answers
Why is precise knowledge of the Age of Gestation (AOG) crucial in obstetrical management?
Why is precise knowledge of the Age of Gestation (AOG) crucial in obstetrical management?
- To decide on the color scheme for the nursery.
- To accurately determine the sex of the fetus.
- To predict the mother's due date with 100% accuracy.
- To ensure appropriate management of potential preterm labor. (correct)
In which scenario would an ultrasound-derived gestational age supersede the gestational age calculated from the last menstrual period (LMP)?
In which scenario would an ultrasound-derived gestational age supersede the gestational age calculated from the last menstrual period (LMP)?
- When the patient prefers the ultrasound dating over LMP dating.
- When the LMP is certain and the patient has regular menstrual cycles.
- When the ultrasound gestational age differs from the LMP-derived gestational age by more than the threshold value. (correct)
- When the patient is certain about the exact date of conception.
A pregnant patient's fundal height measurement deviates significantly from what is expected for her gestational age. Which of the following is the MOST appropriate next step?
A pregnant patient's fundal height measurement deviates significantly from what is expected for her gestational age. Which of the following is the MOST appropriate next step?
- Perform an ultrasound to investigate potential causes. (correct)
- Prescribe a high-calorie diet to promote fetal growth.
- Reassure the patient that fundal height variations are normal.
- Immediately induce labor.
A pregnant patient who is Rh-negative requires which of the following interventions?
A pregnant patient who is Rh-negative requires which of the following interventions?
According to the recommendations from the Philippine Obstetrical and Gynecological Society (POGS), what is the initial screening test for Gestational Diabetes Mellitus (GDM) in low-risk pregnant Filipino women?
According to the recommendations from the Philippine Obstetrical and Gynecological Society (POGS), what is the initial screening test for Gestational Diabetes Mellitus (GDM) in low-risk pregnant Filipino women?
What is the recommended course of action for a pregnant woman who tests positive for HbsAg during prenatal screening?
What is the recommended course of action for a pregnant woman who tests positive for HbsAg during prenatal screening?
Which of the following conditions necessitates an increased daily iron supplementation (60-100 mg/day) during pregnancy?
Which of the following conditions necessitates an increased daily iron supplementation (60-100 mg/day) during pregnancy?
A pregnant patient is diagnosed with a urinary tract infection (UTI) during a prenatal visit. Why is prompt treatment important?
A pregnant patient is diagnosed with a urinary tract infection (UTI) during a prenatal visit. Why is prompt treatment important?
A woman in her first trimester experiences heavy vaginal bleeding and severe abdominal pain. Which of the following conditions should be suspected?
A woman in her first trimester experiences heavy vaginal bleeding and severe abdominal pain. Which of the following conditions should be suspected?
What is the MOST accurate method for determining gestational age during the first trimester?
What is the MOST accurate method for determining gestational age during the first trimester?
In the context of fetal well-being assessment, what does evaluation of Doppler flow studies primarily provide information about?
In the context of fetal well-being assessment, what does evaluation of Doppler flow studies primarily provide information about?
Which of the following activities should a pregnant woman avoid due to the increased risk of decompression sickness for the fetus?
Which of the following activities should a pregnant woman avoid due to the increased risk of decompression sickness for the fetus?
What is the primary rationale for recommending Tetanus, Diphtheria, and Pertussis (Tdap) vaccine during the third trimester of pregnancy?
What is the primary rationale for recommending Tetanus, Diphtheria, and Pertussis (Tdap) vaccine during the third trimester of pregnancy?
According to current guidelines, what is the recommended daily folic acid supplementation for all women capable of becoming pregnant?
According to current guidelines, what is the recommended daily folic acid supplementation for all women capable of becoming pregnant?
A pregnant woman experiences heartburn. Which of the following dietary modifications should be recommended FIRST?
A pregnant woman experiences heartburn. Which of the following dietary modifications should be recommended FIRST?
Which of the following statements regarding dental care during pregnancy is MOST accurate?
Which of the following statements regarding dental care during pregnancy is MOST accurate?
What is the primary purpose of offering cell-free DNA (cfDNA) testing during prenatal care?
What is the primary purpose of offering cell-free DNA (cfDNA) testing during prenatal care?
A pregnant woman has a history of a previous child with a neural tube defect. What is the recommended dose of folic acid supplementation for her next pregnancy, starting one month BEFORE conception?
A pregnant woman has a history of a previous child with a neural tube defect. What is the recommended dose of folic acid supplementation for her next pregnancy, starting one month BEFORE conception?
Following the 'Pinggang Pinoy' model developed by the Food and Nutrition Research Institute (FNRI) of DOST, what should be the approximate proportion of vegetables compared to carbohydrates in a pregnant woman's diet?
Following the 'Pinggang Pinoy' model developed by the Food and Nutrition Research Institute (FNRI) of DOST, what should be the approximate proportion of vegetables compared to carbohydrates in a pregnant woman's diet?
Which of the following conditions should prompt a pregnant woman to seek immediate medical attention, even if a prenatal visit is scheduled for a later date?
Which of the following conditions should prompt a pregnant woman to seek immediate medical attention, even if a prenatal visit is scheduled for a later date?
A pregnant patient reports persistent vomiting. What is important to rule out?
A pregnant patient reports persistent vomiting. What is important to rule out?
Which prenatal lab test checks for higher risk of erythroblastosis fetalis?
Which prenatal lab test checks for higher risk of erythroblastosis fetalis?
If a woman declines HIV testing, what should be the action by the health professional?
If a woman declines HIV testing, what should be the action by the health professional?
Which activity is generally considered safe for pregnant women, provided there are no medical or obstetric contraindications?
Which activity is generally considered safe for pregnant women, provided there are no medical or obstetric contraindications?
Which of the following is a contraindication to exercise during pregnancy?
Which of the following is a contraindication to exercise during pregnancy?
What is the recommended approach to HIV testing in pregnant women to increase testing rates and reduce HIV transmission to their babies?
What is the recommended approach to HIV testing in pregnant women to increase testing rates and reduce HIV transmission to their babies?
If gestational age based on patient LMP is difficult to determine, and the ultrasound indicates the AOG is also greatly different, which ultrasound should the clinician follow?
If gestational age based on patient LMP is difficult to determine, and the ultrasound indicates the AOG is also greatly different, which ultrasound should the clinician follow?
Per the materials, when is it essential to administer Rho(D) immune globulin?
Per the materials, when is it essential to administer Rho(D) immune globulin?
Which action is NOT recommended from the text?
Which action is NOT recommended from the text?
Which of the following statements concerning coitus during pregnancy is correct?
Which of the following statements concerning coitus during pregnancy is correct?
Per the text, what are the four safe activities that don't pose risk to pregnant patients?
Per the text, what are the four safe activities that don't pose risk to pregnant patients?
Which of the items listed is recommended in every pregnancy to transfer maximum passive antibody transfer during the third trimester?
Which of the items listed is recommended in every pregnancy to transfer maximum passive antibody transfer during the third trimester?
Per the text, the pregnancy risks for maternal jobs that require significant physical exertions are...
Per the text, the pregnancy risks for maternal jobs that require significant physical exertions are...
Which of these statements about caffeine consumption and pregnancy is accurate?
Which of these statements about caffeine consumption and pregnancy is accurate?
Of the below factors, what is NOT accurate about the use of illicit drugs?
Of the below factors, what is NOT accurate about the use of illicit drugs?
What are three characteristics of a baby with fetal alcohol syndrome, as stated in the text?
What are three characteristics of a baby with fetal alcohol syndrome, as stated in the text?
Of the factors, which one does NOT apply to prenatal care and travel in common carriers such as airplanes?
Of the factors, which one does NOT apply to prenatal care and travel in common carriers such as airplanes?
Flashcards
Definition of Prenatal Care
Definition of Prenatal Care
Coordinated medical care, risk assessment, and psychosocial support throughout pregnancy, postpartum, and between pregnancies.
Effectiveness of Prenatal Care
Effectiveness of Prenatal Care
Access to quality antenatal care is key to reducing perinatal mortality, including stillbirths and neonatal mortality.
Preconceptional care
Preconceptional care
Care focused on health before pregnancy to reduce risks, promote healthy lifestyles, and improve readiness for pregnancy.
Preconceptional counseling
Preconceptional counseling
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Age of Gestation (AOG)
Age of Gestation (AOG)
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Initial Prenatal Visit
Initial Prenatal Visit
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Crown Rump Length (CRL)
Crown Rump Length (CRL)
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Obstetric imaging
Obstetric imaging
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Risk Assessment
Risk Assessment
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Physical Examination
Physical Examination
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Fundal height
Fundal height
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Fetal Heart Sounds (FHS)
Fetal Heart Sounds (FHS)
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Pelvic or Internal Examination
Pelvic or Internal Examination
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Laboratory Tests
Laboratory Tests
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Diabetes (testing, screening).
Diabetes (testing, screening).
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Gestational DM risk Factors
Gestational DM risk Factors
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Testing Algorithm: Low-Risk Patients
Testing Algorithm: Low-Risk Patients
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Periconceptional Period
Periconceptional Period
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High Risk Pregnancy
High Risk Pregnancy
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Subsequent prenatal visits
Subsequent prenatal visits
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10 Danger Signs of Pregnancy
10 Danger Signs of Pregnancy
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Prenatal Care Timing Benefits
Prenatal Care Timing Benefits
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Weight Gain During pregnancy
Weight Gain During pregnancy
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Mineral Supplementation: Iron
Mineral Supplementation: Iron
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Mineral Supplementation: Folic Acid
Mineral Supplementation: Folic Acid
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Important immunizations
Important immunizations
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Exercise benefits
Exercise benefits
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Employment responsibilities
Employment responsibilities
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Caffeine consumption
Caffeine consumption
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Pregnancy and Flying Benefits
Pregnancy and Flying Benefits
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Coitus benefits
Coitus benefits
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Smoking risks include
Smoking risks include
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Alcohol and pregnancy?
Alcohol and pregnancy?
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Varicosities include:
Varicosities include:
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Hemorrhoids Treatment options
Hemorrhoids Treatment options
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Cell-free DNA benefits
Cell-free DNA benefits
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Cord blood banking
Cord blood banking
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Study Notes
Introduction to Prenatal Care
- Prenatal care is a comprehensive antepartum program
- Involves a coordinated approach to medical care, continuous risk assessment, and psychosocial support
- Optimally, prenatal care begins before conception and extends throughout the postpartum and interconceptional period
- Periconceptional care is not limited to women with poor pregnancy outcomes
- Prenatal care should begin even before the mother gets pregnant
- The periconceptional period spans 5-6 months before conception and 10 weeks after
Effectiveness of Prenatal Care
- Quality antenatal care reduces perinatal mortality
- Antenatal care reduces stillbirths
- Risk Ratio (RR) = 0.82, 95% Confidence Interval (CI) = 0.73-0.93
- Antenatal care reduces neonatal mortality
- Risk Ratio (RR) = 0.80, 95% Confidence Interval (CI) = 0.72-0.90
Contents of Prenatal Care
- Preconceptional care
- Prompt diagnosis of pregnancy
- Initial prenatal evaluation
- Follow-up prenatal visits
Preconceptional Measures: Care and Counseling
- Preconceptional care focuses on health before pregnancy, reducing risks, promoting healthy lifestyles, and improving readiness for pregnancy
- The goal is to identify potential prenatal risk factors
- Preconceptional counseling helps achieve preventive medicine in obstetrics, reduce unplanned pregnancies, and improve pregnancy outcomes
- Includes managing chronic medical disorders like diabetes and epilepsy, genetic diseases, and birth defects
- Major goals are defining the health status of the mother and fetus
- Goals include determining the gestational age of the fetus, and initiating a plan for continuing obstetric monitoring
- Prenatal care should begin as soon as there is any likelihood of pregnancy
Recommended Components of the Initial Prenatal Visit
- Risk assessment includes genetic, medical, obstetrical, and psychosocial factors
- Assessment of Age of Gestation (AOG)
- Estimated due date (EDD) determination
- General physical examination including obstetrical examination
- Plan: laboratory tests, ultrasound, medications and patient education
Age of Gestation (AOG)
- Knowledge of the AOG is vital for ideal obstetrical management
- Incorrect or early dating may lead to inappropriate management of "preterm" labor
- AOG is based on the last menstrual period (LMP) if reliable or ultrasound examination if LMP is uncertain
- Ultrasound variations: ± 7 days up to 20 weeks, ± 14 days at 20-30 weeks, ± 21 days beyond 30 weeks
Assessment of Gestational Age
- If a patient is unsure or has irregular menses, lactation amenorrhea, or is on Depot Medroxyprogesterone then aging by ultrasound is followed
- If last menstrual period (LMP) is certain, Estimated Date of Delivery is based on LMP unless date-measurement discrepancy exceeds thresholds.
- Early transvaginal ultrasound provides more accurate gestational age assessment
- Before 22 weeks AOG assessment using CRL, BPD, AC and FL is accurate with ± 7 to 10 days variation
- After 22 weeks, pregnancy is suboptimally dated/not ideal
- Serial ultrasound evaluation every 3-4 weeks, when ultrasound measurements are smaller than LMP-based AOG for possible poor fetal growth
Fetal Aging by Ultrasound
- Earlier ultrasound measurements supersede later measurements
- AOG should not be changed based on later biometric measurements
- Consider fetal growth restriction or macrosomia when discrepancy occurs after 30 weeks
1st Trimester Fetal Aging
- Mean Sac Diameter (MSD) typically unsuitable for gestational age assignment
- Crown Rump Length (CRL) is the most accurate method for gestational dates at 6-12 weeks
- Biologic size variability is minimal during this time
2nd & 3rd Trimester Fetal Aging
- Determination of fetal age is less reliable in the 2nd and 3rd trimesters
- Fetal growth is affected by initial growth potential, medical conditions, and environmental factors
Obstetric Imaging
- Ultrasound routinely offered to all pregnant individuals between 18-22 weeks
- A single ultrasound should be performed between 18-22 weeks, if only one available
- It accurately establishes AOG and identifies structural abnormalities
- Examination before 20 weeks may affect pregnancy management options if abnormalities are identified
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