Correct Answer: D

Rationale: Tomatoes and lettuce are high in vitamin C, making them suitable choices for a diet prescribed for wound healing. Bananas and pineapple (Choice A) are not particularly high in vitamin C compared to tomatoes and lettuce. Cottage cheese and crackers (Choice B) as well as peanut butter and jelly (Choice C) do not provide significant amounts of vitamin C, which is essential for wound healing.

Correct Answer: B

Rationale: In acute renal failure with a high serum potassium level, the priority intervention is to lower potassium levels to prevent complications like cardiac arrhythmias. Administering a retention enema of Kayexalate is the correct action as it helps lower high potassium levels by exchanging sodium for potassium in the intestines. Options A, C, and D are incorrect. Administering normal saline rapidly and NPH insulin or adding more potassium to the IV solution can further increase potassium levels, worsening the condition. Lidocaine is not indicated for treating hyperkalemia.

Correct Answer: C

Rationale: Refraining from sexual intercourse helps prevent complications with partial placenta previa.

Correct Answer: C

Rationale: The correct answer is to record the findings on the flow sheet. These assessment findings are within normal limits for a 3-hour-old newborn. The axillary temperature of 97.7°F, heart rate of 140 beats/minute with a soft murmur, and irregular respiratory rate of 42 breaths/min are all expected in a newborn. No immediate intervention is needed, so the nurse should document these normal findings for future reference. Placing a pulse oximeter on the heel or swaddling the infant in a warm blanket is not indicated as the vital signs are within normal limits. Checking the vital signs in 15 minutes is unnecessary since the current findings are normal.

Correct Answer: D

Rationale: Gentle massage at the level of the umbilicus is the initial intervention to help contract the uterus and reduce bleeding, which is crucial in managing postpartum hemorrhage. Emptying the bladder can help with fundal displacement, but massage should be done first to stimulate uterine contractions. Increasing the IV oxytocin rate is a possible intervention but not the initial priority. Assessing for shock is important, but addressing the uterine atony through massage takes precedence to prevent further hemorrhage.