Nokea
A nurse is conducting an in-service program for a group of nurses working at the women's health facility about the causes of spontaneous abortion. The nurse determines that the teaching was successful when the group identifies which condition as the most common cause of first trimester abortions?
- A. Cervical insufficiency
- B. Uterine fibroids
- C. Fetal genetic abnormalities
- D. Maternal disease
Correct Answer: C
Rationale: Fetal genetic abnormalities, like chromosomal errors, cause ~70% of first trimester abortions. Cervical insufficiency affects later trimesters, fibroids and maternal diseases (e.g., diabetes) are less common causes early on.
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A client comes to the prenatal clinic for her first visit. When determining the client's estimated due date, the nurse understands which method is the most accurate.
- A. Nagele's rule
- B. Ultrasound
- C. Gestation wheel
- D. Birth calculator
Correct Answer: B
Rationale: Ultrasound in the first trimester measures fetal size accurately for due date estimation, unlike Nagele's rule, gestation wheel, or calculators, which rely on less precise menstrual data or assumptions.
A nurse is preparing to administer penicillin G benzathine 1.2 million units IM now. The amount available is penicillin G benzathine 600,000 units/mL. How many mL should the nurse administer?
- A. 2 mL
- B. 1 mL
- C. 3 mL
- D. 4 mL
Correct Answer: A
Rationale: Formula: volume = dose / concentration. 1,200,000 units / 600,000 units/mL = 2 mL. Other options result from incorrect division or rounding errors.
During a prenatal visit, a pregnant woman says, 'I know the amniotic fluid is important, but can you tell me more about it?' When describing amniotic fluid to a pregnant woman, which description would the nurse most likely include?
- A. This fluid acts as a cushion to help protect your baby from injury.
- B. The amount of fluid remains fairly constant throughout the pregnancy.
- C. The fluid is mostly protein to provide nourishment to your baby.
- D. This fluid acts as a transport mechanism for oxygen and nutrients.
Correct Answer: A
Rationale: Amniotic fluid cushions the fetus against injury, aiding movement and growth. Its volume varies (peaks at term), is mostly water (not protein), and doesn't transport oxygen or nutrients, which the placenta handles.
A client's last menstrual period was April 11. Using Nägele's rule, her estimated date of birth (EDB) would be:
- A. 18-Feb
- B. 18-Jan
- C. 8-Jan
- D. 28-Dec
Correct Answer: B
Rationale: Nägele's rule: add 1 year, subtract 3 months, add 7 days. April 11, 2023 + 1 year = April 11, 2024; minus 3 months = January 11, 2024; plus 7 days = January 18, 2024. Other options misapply the rule.
A nurse is caring for a client who has an NG tube set to low intermittent suction. The nurse irrigates the NG tube twice with 30 mL of normal saline solution during his shift. At the end of the shift, the NG canister contains 475 mL. What amount of NG drainage should the nurse record?
- A. 415 mL
- B. 475 mL
- C. 445 mL
- D. 430 mL
Correct Answer: A
Rationale: NG drainage = canister fluid (475 mL) minus irrigation (2 x 30 mL = 60 mL) = 415 mL. Recording irrigation fluid as drainage would inflate the output inaccurately.