Female Reproductive Pregnancy and Childbirth Flashcards
(145 cards)
Danger Signals
Placental A______
Placental P______
Severe Pre______
HELLP =
PLACENTAL ABRUPTION
PLACENTA PREVIA
SEVERE PREECLAMPSIA
HELLP (HEMOLYSIS, ELEVATED LIVER ENZYMES, AND LOW PLATELETS) SYNDROME
PLACENTAL ABRUPTION (ABRUPTIO PLACENTAE)
Pregnant woman who is in the l____ few weeks of pregnancy complains of ______ onset of vaginal ______ accompanied by a _______ uterus that feels _____ (hypertonic) and is very ____ful; may have uterine contractions.
Associated with a _____ onset of _____-red-colored vaginal bleeding. Up to 20% of women do not have vaginal bleeding (blood is trapped between placenta and uterine wall; Figure 1).
If mild, blood is re______, and affected area reim____. Severe cases cause hem______ (e.g., DIC); fetus must be _____ to save mother’s life.
Higher risk in females with history of h___tension, pree_____, smoking, trauma, and co_____ use. Strongest risk factor is a _____ of placenta abruption.
Call 911. Requires ______ treatment and __-section. Placenta abruption accounts for 5% to 8% of maternal deaths.
Pregnant woman who is in the last few weeks of pregnancy complains of sudden onset of vaginal bleeding accompanied by a contracted uterus that feels hard (hypertonic) and is very painful; may have uterine contractions.
Associated with a sudden onset of dark-red-colored vaginal bleeding. Up to 20% of women do not have vaginal bleeding (blood is trapped between placenta and uterine wall; Figure 1).
If mild, blood is reabsorbed, and affected area reimplants. Severe cases cause hemorrhage (DIC); fetus must be delivered to save mother’s life.
Higher risk in females with history of hypertension, preeclampsia/eclampsia, smoking, trauma, and cocaine use. Strongest risk factor is a history of placenta abruption.
Call 911. Requires emergent treatment and C-section. Placenta abruption accounts for 5% to 8% of maternal deaths.
PLACENTA PREVIA
=
A multipara woman who is in the late second to third trimester complains of new onset of pain____ vaginal bleeding that is worsened by inter_____. Blood is ____ red in color. From 10% to 20% present with both bleeding and uterine contractions. Uterus is s____ and nontender.
Any vaginal or rectal insertion or stimulation is an absolute _______ (can precipitate severe hemorrhage).
(1) to diagnose.
If cervix is not dilated, treatment is (1)*. Administer IV (1)* if there is uterine cramping. Uterus will usually reimplant itself if mild.
If cervix is dilated or if hemorrhaging, (1)*. Severe cases cause hemorrhage; fetus must be delivered to save mother’s life.
Strong association between placenta previa and amniotic fluid ______ (sudden respiratory distress, hypoxia, and/or seizures followed by DIC during labor or after delivery).
The placenta implants too low either on top of the cervix or on the cervical isthmus/neck.
A multipara woman who is in the late second to third trimester complains of new onset of painless vaginal bleeding that is worsened by intercourse. Blood is bright red in color. From 10% to 20% present with both bleeding and uterine contractions. Uterus is soft and nontender.
Any vaginal or rectal insertion or stimulation is an absolute contraindication (can precipitate severe hemorrhage).
Transabdominal ultrasound to diagnose.
If cervix is not dilated, treatment is strict bed rest. Administer IV magnesium sulfate if there is uterine cramping. Uterus will usually reimplant itself if mild.
If cervix is dilated or if hemorrhaging, fetus is delivered by C-section. Severe cases cause hemorrhage; fetus must be delivered to save mother’s life.
Strong association between placenta previa and amniotic fluid embolism (sudden respiratory distress, hypoxia, and/or seizures followed by DIC during labor or after delivery).
SEVERE PREECLAMPSIA
A primigravida woman who is in the late ____ trimester of pregnancy (>34 weeks) complains of a sudden onset of severe recurrent ____aches, v____ abnormalities (blurred vision, scotomas), and pitting _____. Edema easily seen on the f____/eyes and fingers. Sudden rapid ______ gain within 1 to 2 days (>2–4 1b/wk). New onset of right upper quadrant ______ pain.
Blood pressure (BP) more than ___/___ mmHg. Urine _____ 1+ or higher.
Sudden decrease in urine output (____uria). Visual symptoms, headache, nausea, and vomiting are worrisome signs (_____opathy).
If seizures occur, condition is reclassified as ______. Earliest time period that preeclampsia/eclampsia can occur is at ___ weeks’ gestation (and up to 4 weeks postpartum).
_______ stroke accounts for 36% of pregnancy-associated stroke. Only known “cure” is ______of fetus or baby.
(1)* is drug of choice to prevent eclampsia.
A primigravida woman who is in the late third trimester of pregnancy (>34 weeks) complains of a sudden onset of severe recurrent headaches, visual abnormalities (blurred vision, scotomas), and pitting edema. Edema easily seen on the face/eyes and fingers. Sudden rapid weight gain within 1 to 2 days (>2–4 1b/wk). New onset of right upper quadrant abdominal pain.
Blood pressure (BP) more than 140/90 mmHg. Urine protein 1+ or higher.
Sudden decrease in urine output (oliguria). Visual symptoms, headache, nausea, and vomiting are worrisome signs (encephalopathy).
If seizures occur, condition is reclassified as eclampsia. Earliest time period that preeclampsia/eclampsia can occur is at 20 weeks’ gestation (and up to 4 weeks postpartum).
Hemorrhagic stroke accounts for 36% of pregnancy-associated stroke. Only known “cure” is delivery fetus or baby.
Magnesium Sulfate* is drug of choice to prevent eclampsia.
HELLP SYNDROME
=
Classic patient is a multipara woman older than 25 years of age who is in the _____ trimester of pregnancy. Presents with the signs and symptoms of preeclampsia accompanied by ____ upper quadrant (or midepigastric) abdominal pain with n____/v_____and malaise (may be mistaken for viral illness). Symptoms can present suddenly.
Lab abnormalities are elevation of (2)*, total (1) (>1.2 mg/dL), and LDH with decreased number of (1)* (<100,000 cells/mcL) and ____, peripheral smear with schistocytes and burr cells, and hemoglobin and hematocrit.
If severe, right upper quadrant/epigastric pain may have h______ bleed or swelling, which may be signs of impending hepatic r______.
Serious but rare complication of preeclampsia/eclampsia (15% cases develop HELLP). (HEMOLYSIS, ELEVATED LIVER ENZYMES, AND LOW PLATELETS)
Classic patient is a multipara woman older than 25 years of age who is in the third trimester of pregnancy. Presents with the signs and symptoms of preeclampsia accompanied by right upper quadrant (or midepigastric) abdominal pain with nausea/vomiting and malaise (may be mistaken for viral illness). Symptoms can present suddenly.
Lab abnormalities are elevation of AST and ALT, total bilirubin (>1.2 mg/dL), and lactate dehydrogenase (LDH) with decreased number of platelets (<100,000 cells/mcL) and DIC, peripheral smear with schistocytes and burr cells, and hemoglobin and hematocrit.
If severe, right upper quadrant/epigastric pain may have hepatic bleed or swelling, which may be signs of impending hepatic rupture.
Lab Tests During Pregnancy
Urinalysis (Dipstick)
Obtain midstream urine _____ gynecologic exam (minimizes contamination from vaginal discharge). Check protein, leukocytes, nitrite, blood, glucose.
- Protein =
- If ___ weeks’ gestation or more, rule out (1) if protein ___ or higher
- If proteinuria present, order (1) urine for protein and creatinine
Obtain midstream urine before gynecologic exam (minimizes contamination from vaginal discharge). Check protein, leukocytes, nitrite, blood, glucose.
- Protein: Negative (trace, 1+ to 4+)
- If 20 weeks’ gestation or more, rule out preeclampsia if protein 1+ or higher
- If proteinuria present, order 24-hour urine for protein and creatinine
Pregnancy and LFTS
What happens to LFT levels in pregnancy?
Why happens to the level alkaline phosphatase? why?
ALT, AST, bilirubin, and gamma glutamyl transpeptidase (GGT) remain the same except for alkaline phosphatase.
Expected to increase during pregnancy due to the growth of the fetal bones. Values higher in multiple gestation pregnancies.
Pregnancy and WBCs
What happens to WBC levels in pregnancy? Why?
Levels may climb as high as?
Leukocytosis with ______ is “normal” during pregnancy (if it is not accompanied by signs of infection)
WBC is elevated throughout pregnancy, especially during the third trimester. This is because your body is going through a lot of stress just being pregnant
May climb as high as 16,000 cells/mm3 in the third trimester. (WBC in nonpregnant adults: range is 4,500–10,500 cells/mm3.)
Leukocytosis with neutrophilia is “normal” during pregnancy (if it is not accompanied by signs of infection).
Pregnancy and Hemoglobin and Hematocrit
What happens to the levels of Hgb and Hct during pregnancy?
Why does this happen?
Levels may be as low as?
What should you rule out?
Both values go down during pregnancy due to hemodilution. Called physiologic or dilutional anemia of pregnancy.
The hemoglobin value may be as low as 10.5 g/dL, and the hematocrit value may go down to about 30% (by the third trimester).
To rule out iron-deficiency anemia, check the mean corpuscular volume (MCV). It is not affected by pregnancy.
Pregnancy and Erythrocyte Sedimentation Rate
What happens to the levels of ESR?
- Normal range =*
- Rate in pregnancy =*
ESR increases during pregnancy.
- Normal Range:* 0 to 20 mm/hr
- Range in Pregnancy=* 13-70 mm/hr by the third trimester
Pregnancy and TFTs
=
why?
T3 elevated
T3 higher bc of increased levels of thyroid-binding globulin (TBG)
TSH, free T3, free T4 remains unchanged
Serum Alpha-Fetoprotein
What is it used to detect? Would levels be low or high? When to check?
Where does it produced?
A biochemical marker used to estimate a pregnant woman’s risk of having a fetus with DOWN SYNDROME. LOW levels of AFP (check btwn 15-18 weeks)
Serum alpha-fetoprotein (AFP) is manufactured by the liver of the fetus and mother. Majority of maternal AFP comes from the fetus (liver, fetal yolk sac, gastrointestinal [GI] tract).
Serum Alpha-Fetoprotein
AFP levels by race white, asian, black?
Indications to check serum alpha-fetoprotein include (2)
AFP levels are adjusted for weight and race; slightly higher levels are found in Black women and lower levels in Asian women (compared with Whites).
Indications include advanced maternal age and previous births or family history of chromosomal or birth defects (e.g., neural tube defects).
Low Alpha Fetoprotein
Most common risk factor?
If AFP is low order a triple or quadruple screen test that includes?
Mature maternal age _>_35yo “geriatric pregnancy” is the most common risk factor for Down syndrome (35-year-old or older woman has a 1:350 at term).
Low AFP → order (AFP, HCG, estriol, inhibin-A) to eval for Down Syndrome (trisomy 21)
High Alpha-Fetoprotein
Rule out (2)
- Most common reason for a high AFP is pregnancy d_____ error.
- If AFP is high (e.g., neural tube defects, omphalocele, gastroschisis), order the (1) + (1) to rule out neural tube abnormalities (higher sensitivity than AFP alone).
- To prevent neural tube defects: Ingest (1)* 400 mcg (0.4 mg) per day (found in ____ green vegetables, fortified ______). To reduce risk, advise patients to take _____ vitamins when planning to become pregnant.
Neural Tube Defects or Multiple Gestation
- Most common reason for a high AFP is pregnancy dating error.
- If AFP is high (e.g., neural tube defects, omphalocele, gastroschisis), order the triple screen or the quad screen test and sonogram to rule out neural tube abnormalities (higher sensitivity than AFP alone).
- To prevent neural tube defects: Ingest folic acid 400 mcg (0.4 mg) per day (found in leafy green vegetables, fortified cereals). To reduce risk, advise patients to take prenatal vitamins when planning to become pregnant.
Triple Marker Screen Test
=
The hormone level results are used in a formula to figure out the ____ for a _____ syndrome infant.
Diagnostic test for genetic anomalies is ______ testing.
AFP, beta HCG, and estriol serum level values
The hormone level results are used in a formula to figure out the risk for a Down syndrome infant.
Diagnostic test for genetic anomalies is chromosome testing.
Quadruple Marker Screen Test
Combination of the triple screen + (1)
What is inhibin A?
The triple or quadruple screen tests are more sensitive than the AFP alone (but have a higher rate of false positives).
Gold Standard Test for genetic disorders =
Combination of the triple screen hormones (AFP, beta-HCG, estradiol) plus inhibin-A
Inhibin A is a hormone released by the placenta
Gold Standard test for genetic disorders = fetal chromosomes/DNA.
Screening For Genetic Disorders
What genetic disorder should be screened for in these populations?
- Jewish descent (Ashkenazi Jews)
- Whites
- African Americans
- Tay–Sachs disease; this fatal neurological disease, with no known cure, is more common among Eastern Europeans of Jewish descent (Ashkenazi Jews)
- Cystic Fibrosis - whites
- Sickle Cell Anemia - African Americans
Amniocentesis And Chorionic Villus Sampling
When can these tests be done
- Chorionic villus sampling =*
- Amniocentesis =*
- Specimens contain _____ cells
- Fetal ch_____/D____ is tested for abnormalities
- Chorionic villus sampling =* 10-12 weeks
- Amniocentesis =* 15-18 weeks
- Specimens contain fetal cells
- Fetal chromosomes/DNA is tested for abnormalities
Beta Human Chorionic Gonadotropin
Manufactured by the chorion (early _____) by day __ to day __.
High-quality urine home pregnancy tests (e.g., First Response, EPT) can detect pregnancy as early as the first missed _____ (__ weeks after conception).
There are ______ levels of HCG with twins/multiple fetuses.
Manufactured by the chorion (early placenta) by day 8 to day 10.
High-quality urine home pregnancy tests (e.g., First Response, EPT) can detect pregnancy as early as the first missed period (2 weeks after conception).
There are higher levels of HCG with twins/multiple fetuses.
Beta-HCG Doubling Time
Why do we care about doubling time? (Useful only in 1st trimester)
- Normal finding:* HCG doubles every ___ hours during the first __ weeks (first trimester) in a normal pregnancy.
- Ectopic pregnancy:* The HCG has _____ values than normal. Values increase _____ and do not double as expected.
- Inevitable abortion:* Values of HCG start decreasing r______; there is ___ doubling. Cervix is _____.
Doubling time is an important indicator of the viability of a pregnancy.
- Normal finding:* HCG doubles every 48 hours during the first 12 weeks (first trimester) in a normal pregnancy.
- Ectopic pregnancy:* The HCG has lower values than normal. Values increase slowly and do not double as expected.
- Inevitable abortion:* Values of HCG start decreasing rapidly; there is no doubling. Cervix is dilated.
Vaginal Cultures
(1) tested for at 35 to 37 weeks.
Swab ____ introitus and _____ (insert up to anal sphincter) for culture and sensitivity (C&S).
If positive, administer intrapartum antibiotic _____ with (1)Rx* 5 million units IV, followed by 2.5 to 3 million units IV every __ hours until delivery.
Penicillin allergy: Use ___/___mycin instead
Group B Streptococcus (GBS) is tested for at 35 to 37 weeks
Swab vaginal introitus and rectum (insert up to anal sphincter) for culture and sensitivity (C&S).
If positive, administer intrapartum antibiotic prophylaxis with penicillin G 5 million units IV, followed by 2.5 to 3 million units IV every 4 hours until delivery.
Penicillin allergy: Use clindamycin or erythromycin instead
Sexually Transmitted Diseases
Screen for (1) surface antigen, H__, g_____, ch_____, s_____, (1) types 1 and 2.
Screen for hepatitis B surface antigen (HBsAg), HIV, gonorrhea, chlamydia, syphilis, herpesvirus types 1 and 2.