Nursing Elites

1. Polygenic traits are those that are:

• A. developed during adolescence.
• B. transmitted by the mother.
• C. uncommon in humans.
• D. determined by several pairs of genes.

Correct answer: D

Rationale: Polygenic traits, such as height and skin color, are determined by several pairs of genes working together. These traits are influenced by the combined effects of multiple genes across the genome, rather than being controlled by a single gene pair. Choices A, B, and C are incorrect because polygenic traits are not specifically developed during adolescence, transmitted by the mother, or uncommon in humans. Understanding polygenic traits is essential in genetics as they demonstrate the complexity of genetic inheritance and the influence of multiple genes on a single trait.

2. In the Ballard Gestational Age Assessment Tool, the nurse determines that a 15-month-old infant has a gestational age of 42 weeks. Based on this finding, which intervention is most important for the nurse to implement?

• A. Provide blow-by oxygen
• B. Provide a capillary blood glucose test
• C. Draw arterial blood gases
• D. Apply a pulse oximeter to the foot

Correct answer: B

Rationale: Late preterm infants, such as those with a gestational age of 42 weeks, are at higher risk for hypoglycemia due to immature metabolic regulation. Monitoring capillary blood glucose is crucial to detect and manage hypoglycemia promptly. Providing blow-by oxygen (Choice A) is not indicated for an infant at risk for hypoglycemia. Drawing arterial blood gases (Choice C) is not the primary intervention for assessing hypoglycemia. Applying a pulse oximeter to the foot (Choice D) is not directly related to monitoring blood glucose levels in this context.

3. What nursing diagnosis is the most appropriate for a woman experiencing severe preeclampsia?

• A. Risk for injury to mother and fetus, related to central nervous system (CNS) irritability.
• B. Risk for altered gas exchange.
• C. Risk for deficient fluid volume, related to increased sodium retention secondary to the administration of magnesium sulfate.
• D. Risk for increased cardiac output, related to the use of antihypertensive drugs.

Correct answer: A

Rationale: The most appropriate nursing diagnosis for a woman experiencing severe preeclampsia is 'Risk for injury to mother and fetus, related to central nervous system (CNS) irritability.' Severe preeclampsia poses a significant risk of injury to both the mother and the fetus due to complications such as seizures, stroke, and placental abruption. 'Risk for altered gas exchange' is not the priority diagnosis as pulmonary edema is more common in severe preeclampsia. 'Risk for deficient fluid volume' is incorrect as sodium retention in severe preeclampsia often leads to fluid overload. 'Risk for increased cardiac output' is also incorrect as antihypertensive drugs are used to reduce cardiac output in this condition.

4. During which of the following periods does the development of arms and legs occur in a pregnancy?

• A. Development of the lungs
• B. Development of the heart
• C. Development of arms and legs
• D. Development of the stomach

Correct answer: C

Rationale: The correct answer is C. The development of arms and legs occurs during the critical period of the fourth to eighth weeks of pregnancy. This timeframe is crucial for the formation of limbs and other key body parts. Choices A, B, and D are incorrect because the development of the lungs, heart, and stomach respectively occurs at different stages of fetal development and is not primarily associated with the fourth to eighth weeks of pregnancy.

5. At 12 hours after the birth of a healthy infant, the mother complains of feeling constant vaginal pressure. The nurse determines the fundus is firm and at midline with moderate rubra lochia. Which action should the nurse take?

• A. Check the suprapubic area for distention
• B. Inform the client to take a warm sitz bath
• C. Inspect the client's perineal and rectal areas
• D. Apply a fresh pad and check in 1 hour

Correct answer: C

Rationale: In this situation, the mother's complaint of constant vaginal pressure along with a firm fundus and moderate rubra lochia indicates a potential perineal injury or hematoma. The correct action for the nurse to take is to inspect the client's perineal and rectal areas to assess for any signs of trauma or hematoma. Checking the suprapubic area for distention (Choice A) is not the priority here since the symptoms suggest a perineal issue. Advising a warm sitz bath (Choice B) may not address the underlying issue and could potentially worsen any existing trauma. Applying a fresh pad and checking in 1 hour (Choice D) does not address the need for immediate assessment of the perineal and rectal areas in response to the reported symptoms.

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