[HD 201] E02-T08-Prenatal Care_compressed

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Questions and Answers

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)?

  • 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?

  • 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?

<p>Administration of Anti-Rho(D) Immune Globulin. (D)</p> Signup and view all the answers

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?

<p>Fasting Blood Sugar (FBS) (D)</p> Signup and view all the answers

What is the recommended course of action for a pregnant woman who tests positive for HbsAg during prenatal screening?

<p>Give Hepatitis-B Immunoglobulin to the neonate immediately after delivery. (A)</p> Signup and view all the answers

Which of the following conditions necessitates an increased daily iron supplementation (60-100 mg/day) during pregnancy?

<p>Patient with twins, started late in pregnancy, or low Hb. (C)</p> Signup and view all the answers

A pregnant patient is diagnosed with a urinary tract infection (UTI) during a prenatal visit. Why is prompt treatment important?

<p>To reduce the risk of symptomatic urinary infection during pregnancy. (B)</p> Signup and view all the answers

A woman in her first trimester experiences heavy vaginal bleeding and severe abdominal pain. Which of the following conditions should be suspected?

<p>Spontaneous abortion. (B)</p> Signup and view all the answers

What is the MOST accurate method for determining gestational age during the first trimester?

<p>Crown Rump Length (CRL) (C)</p> Signup and view all the answers

In the context of fetal well-being assessment, what does evaluation of Doppler flow studies primarily provide information about?

<p>Fetal blood flow patterns. (B)</p> Signup and view all the answers

Which of the following activities should a pregnant woman avoid due to the increased risk of decompression sickness for the fetus?

<p>Scuba diving. (A)</p> Signup and view all the answers

What is the primary rationale for recommending Tetanus, Diphtheria, and Pertussis (Tdap) vaccine during the third trimester of pregnancy?

<p>To provide fetal protection against pertussis outbreak. (D)</p> Signup and view all the answers

According to current guidelines, what is the recommended daily folic acid supplementation for all women capable of becoming pregnant?

<p>400 mcg/day (B)</p> Signup and view all the answers

A pregnant woman experiences heartburn. Which of the following dietary modifications should be recommended FIRST?

<p>Consuming small, frequent meals (B)</p> Signup and view all the answers

Which of the following statements regarding dental care during pregnancy is MOST accurate?

<p>Periodontal disease is linked to preterm labor. (B)</p> Signup and view all the answers

What is the primary purpose of offering cell-free DNA (cfDNA) testing during prenatal care?

<p>To screen for common fetal chromosomal abnormalities. (D)</p> Signup and view all the answers

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?

<p>4 mg/day (A)</p> Signup and view all the answers

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?

<p>Vegetables should be equal to or slightly more than the serving of carbohydrates. (C)</p> Signup and view all the answers

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?

<p>Sudden decrease in fetal movements. (D)</p> Signup and view all the answers

A pregnant patient reports persistent vomiting. What is important to rule out?

<p>Hyperemesis gravidarum. (A)</p> Signup and view all the answers

Which prenatal lab test checks for higher risk of erythroblastosis fetalis?

<p>Blood grouping (ABO, Rh) (B)</p> Signup and view all the answers

If a woman declines HIV testing, what should be the action by the health professional?

<p>Document the declination in the prenatal file. (A)</p> Signup and view all the answers

Which activity is generally considered safe for pregnant women, provided there are no medical or obstetric contraindications?

<p>Walking (B)</p> Signup and view all the answers

Which of the following is a contraindication to exercise during pregnancy?

<p>Significant risk of preterm labor (A)</p> Signup and view all the answers

What is the recommended approach to HIV testing in pregnant women to increase testing rates and reduce HIV transmission to their babies?

<p>Opt-out approach, with the right to decline. (D)</p> Signup and view all the answers

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?

<p>Ultrasound for the first trimester (A)</p> Signup and view all the answers

Per the materials, when is it essential to administer Rho(D) immune globulin?

<p>To Rh-negative mothers (B)</p> Signup and view all the answers

Which action is NOT recommended from the text?

<p>Suggest drinking more coffee in the first trimester to help with fatigue. (C)</p> Signup and view all the answers

Which of the following statements concerning coitus during pregnancy is correct?

<p>It can still be allowed, as long as comfortable (A)</p> Signup and view all the answers

Per the text, what are the four safe activities that don't pose risk to pregnant patients?

<p>Walking, running, swimming, low-impact aerobics (B)</p> Signup and view all the answers

Which of the items listed is recommended in every pregnancy to transfer maximum passive antibody transfer during the third trimester?

<p>Tetanus-diphtheria-acellular pertussis (Tdap) (C)</p> Signup and view all the answers

Per the text, the pregnancy risks for maternal jobs that require significant physical exertions are...

<p>Risks of preterm birth are slightly to modestly increased (C)</p> Signup and view all the answers

Which of these statements about caffeine consumption and pregnancy is accurate?

<p>Heavy caffeine intake slightly increases miscarriage risks. (D)</p> Signup and view all the answers

Of the below factors, what is NOT accurate about the use of illicit drugs?

<p>Drug use is permitted at small rates in the patients. (D)</p> Signup and view all the answers

What are three characteristics of a baby with fetal alcohol syndrome, as stated in the text?

<p>Mental retardation, Behavioral disturbances, Typical facial appearance (C)</p> Signup and view all the answers

Of the factors, which one does NOT apply to prenatal care and travel in common carriers such as airplanes?

<p>Airlines do not have strict policies on pregnant women. (D)</p> Signup and view all the answers

Flashcards

Definition of Prenatal Care

Coordinated medical care, risk assessment, and psychosocial support throughout pregnancy, postpartum, and between pregnancies.

Effectiveness of Prenatal Care

Access to quality antenatal care is key to reducing perinatal mortality, including stillbirths and neonatal mortality.

Preconceptional care

Care focused on health before pregnancy to reduce risks, promote healthy lifestyles, and improve readiness for pregnancy.

Preconceptional counseling

Counseling aimed at preventive medicine, reducing unplanned pregnancies, and improving pregnancy outcomes for mothers experiencing pregnancy.

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Age of Gestation (AOG)

Based on LMP and ultrasound, imperative for ideal management, use if regular menses/good recall, or ultrasound.

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Initial Prenatal Visit

Includes assessment of gestational age, estimated due date (EDD), general physical exam, lab tests, ultrasound, medications and education.

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Crown Rump Length (CRL)

Can be used to determine the AOG, typically done between 6-12 weeks. Most accurate method for determining dates at 6-12 weeks, very little biologic size variability during this time.

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Obstetric imaging

Common in routine prenatal care. Accurate in establishing AOG and able to identify structural abnormalities.

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Risk Assessment

Includes genetic, medical, obstetrical and psychosocial factors that help determine the best course of action for a pregnancy.

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Physical Examination

Includes BP, HR, RR, temperature, weight, height, BMI, abdominal and obstetric exams to check for abnormalities and general maternal status. Check vitals and baby.

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Fundal height

Measure distance over the abdominal wall from the top of the symphysis pubis to top of the uterine fundus. Good correlation between gestational age (weeks) and measured height of fundus (cm) between 20-34 weeks AOG.

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Fetal Heart Sounds (FHS)

Use doppler at 10 weeks, stethoscope at 20-22. Varies where FHS are heard best, fetus moves.

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Pelvic or Internal Examination

Usually done in intial prenatal visit. Assess vulva, vagina, perineal anomalies, consistency, length, and dilatation of cervix and bony pelvis.

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Laboratory Tests

Standard tests routinely done with prenatal visits like CBC, blood grouping, syphilis screen, HBsAg, urinalysis, FBS or OGTT, Rubella IgG, Pap Smear, and HIV

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Diabetes (testing, screening).

Screen for overt diabetes, typically do FBS or 75-gram OGTT, screen for possible diabetes mellitus.

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Gestational DM risk Factors

Includes high-risk factors to developing gestational diabetes - personal history of impaired glucose tolerance, ethinic groups with high type 2, family history of DM and pre-pregnancy BMI.

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Testing Algorithm: Low-Risk Patients

FBS < 92 g/dL. OGTT at 24 to 28 weeks, if normal; repeat testing at 32..If GDM= FPG >/= 92 mg/dL or 1-hr plasma glucose >/= 180 mg/dL or 2-hr plasma glucose >/= 153 mg/dL

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Periconceptional Period

5 to 6 months before conception and 10 weeks after conception.

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High Risk Pregnancy

Pre-existing medical or surgical condition and/or previus poor pregnancy outcome that affects this pregnancy.

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Subsequent prenatal visits

Traditionally scheduled if no medical/obstetric/fetal complications: 4 week intervals until 28 weeks. 2 week intervals until 36. Weekly after 36 weeks.

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10 Danger Signs of Pregnancy

Chills & fever, persistent vomiting, dysuria, swelling of face and fingers, severe or persistent headache, blurring vision, vaginal bleeding, abdominal pain, fluid leakage from vagina, sudden change in frequency and intensity.

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Prenatal Care Timing Benefits

Important to define the health status of the mother and fetus. Need to determine GOG and initiate a plan for obstetric care at initial visits.

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Weight Gain During pregnancy

Weight is increased with twins, high, decreased if the initial innstitute of medicine guidelines were formulated with current emphases on obesity with range guidelines.

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Mineral Supplementation: Iron

Iron cannot be met alone with diet, supplementation is helpful with nausea and vomitting, can start until 16 weeks.

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Mineral Supplementation: Folic Acid

Important and helps prevent neural tune defects, folic acid has nutritional sources and is periconceptional to treat all women with childbearing years

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Important immunizations

Anti rabies given with specific immune globulin given to women in the trimester and pregnancy with help to change management. Helps with important immunizations and inactivated influenza.

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Exercise benefits

Exercise if patient has no medical or obstetric contraindication and engaging in minutey, moderate activity, avoid fatigue or injury and those with high risk of falling and diving should be avoided.

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Employment responsibilities

Has been associated with the increased risks of preterm and standing at 3 hours daily with precautions to risks of walking. adequate periods of rest.

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Caffeine consumption

Moderate of less than 200 associated, not associated of miscarriage or preterm births. Heavy raises it.

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Pregnancy and Flying Benefits

Does not change safety, facilities, pregnant, airlines or travelling with high risk will occur

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Coitus benefits

No harm with proper pressure, also helps avoid threaten abortion, with decrease and fear.

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Smoking risks include

Absolity prohibits and harmful in pregnancy, can lead to low birthweights and leads to preterm delivery with increase levels of fetal.

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Alcohol and pregnancy?

Should abstain drinking alcohol to prevent fetal syndrome

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Varicosities include:

Very common, pregnancy and has genetic problems in pregnant women, gets worsened by progressing pregnancy and weight.

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Hemorrhoids Treatment options

A very common and large in the rectal veins with treatemnt with topical anesthetics that is needed after surgical treatment

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Cell-free DNA benefits

Derived from cell free and materinal blood, detects choromodal abnormalities with testing that helps avoid miscarriages. This may happen at 35.

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Cord blood banking

Containing hemopoietic blood diseases, can treat types of diseases and the blood banks, may be avilable with advantages and disadvatages.

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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
  • 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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