Nursing Elites

1. Before meiosis, a sperm cell:

• A. contains 46 chromosomes.
• B. contains two X chromosomes.
• C. is significantly larger than an egg cell.
• D. contains both an X and a Y chromosome.

Correct answer: A

Rationale: Before meiosis, a sperm cell contains 46 chromosomes. This is because sperm cells, like other somatic cells, have a diploid number of chromosomes. During meiosis, the number of chromosomes is halved to 23 to combine with an egg cell during fertilization. Choice B is incorrect because a sperm cell carries either an X or a Y chromosome, not both (Choice D). Choice C is incorrect as sperm cells are generally smaller than egg cells, which is an adaptation that aids in motility and penetration of the egg during fertilization.

2. What is the typical sex chromosome pattern for females?

• A. XX
• B. XYY
• C. XY
• D. XXY

Correct answer: A

Rationale: The typical sex chromosome pattern for females is XX. Females have two X chromosomes, which is represented as XX. Choice B (XYY) is incorrect as it represents the sex chromosome pattern for males with an extra Y chromosome. Choice C (XY) is the sex chromosome pattern for males. Choice D (XXY) represents a genetic disorder known as Klinefelter syndrome, where males have an extra X chromosome.

3. What additional assessment is required for the postoperative care of a pregnant woman who undergoes abdominal surgery for appendicitis?

• A. Intake and output (I&O) and intravenous (IV) site.
• B. Signs and symptoms of infection.
• C. Vital signs and incision.
• D. Fetal heart rate (FHR) and uterine activity.

Correct answer: D

Rationale: The correct additional assessment for postoperative care of a pregnant woman requiring abdominal surgery for appendicitis is monitoring the fetal heart rate (FHR) and uterine activity. This is crucial due to the presence of the fetus. Continuous fetal and uterine monitoring should be prioritized to ensure the well-being of both the mother and the baby. While assessing I&O levels and the IV site are common postoperative care procedures, they are not specific to the unique needs of a pregnant woman. Evaluating for signs and symptoms of infection is important for any postoperative patient but is not the additional assessment required specifically for a pregnant woman in this scenario. Routine vital signs and incision evaluation are standard components of postoperative care but do not address the specific needs related to the fetus and the uterus in this case.

4. Which information regarding the care of antepartum women with cardiac conditions is most important for the nurse to understand?

• A. Stress on the heart is greatest in the first trimester and the last 2 weeks before labor.
• B. Women with class II cardiac disease should avoid heavy exertion and any activity that causes even minor symptoms.
• C. Women with class III cardiac disease should get 8 to 10 hours of sleep every day and limit housework, shopping, and exercise.
• D. Women with class I cardiac disease need bed rest through most of the pregnancy and face the possibility of hospitalization near term.

Correct answer: B

Rationale: Class II cardiac disease is symptomatic with ordinary activity. Women in this category need to avoid heavy exertion and limit regular activities as symptoms dictate. Stress is greatest between weeks 28 and 32 of gestation, when hemodynamic changes reach their maximum. Class III cardiac disease is symptomatic with less-than-ordinary activity. These women need bed rest most of the day and face the possibility of hospitalization near term. Class I cardiac disease is asymptomatic at normal levels of activity. These women can perform limited normal activities with discretion, although they still need a good amount of sleep.

5. Which FHR finding is the most concerning to the nurse providing care to a laboring client?

• A. Accelerations with fetal movement.
• B. Early decelerations.
• C. Average FHR of 126 beats per minute.
• D. Late decelerations.

Correct answer: D

Rationale: Late decelerations are caused by uteroplacental insufficiency, resulting in fetal hypoxemia. They are considered ominous if persistent, indicating compromised oxygen supply to the fetus. Accelerations with fetal movement (Choice A) are reassuring signs of fetal well-being. Early decelerations (Choice B) are typically benign, associated with head compression during contractions. An average FHR of 126 beats per minute (Choice C) falls within the normal range for fetal heart rate and is not concerning. Therefore, the most concerning FHR finding in a laboring client is late decelerations (Choice D).

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