Correct Answer: C

Rationale: Repositioning every two hours is the most effective measure in preventing skin breakdown for a client with a CVA. This practice helps to relieve pressure on the skin, reducing the risk of pressure ulcers. Placing the client in a wheelchair for extended periods (Choice A) can increase pressure on specific areas, leading to skin breakdown. Padding bony prominences (Choice B) can provide some protection but may not address the root cause of pressure ulcers. Massaging reddened bony prominences (Choice D) can potentially worsen the condition by causing further damage to already compromised skin.

Correct Answer: C

Rationale: A temperature of 99.5 degrees Fahrenheit is slightly elevated but not immediately critical. In a postoperative patient, an elevated temperature could indicate an infection, which requires prompt attention to prevent complications. The respiratory rate, blood pressure, and heart rate within normal ranges are important to monitor but do not indicate an immediate need for intervention as an elevated temperature does.

Correct Answer: D

Rationale: When introducing solid foods to infants, iron-fortified cereal is usually recommended as the first food due to its high nutritional value and the importance of iron for the baby's development. Strained fruits (choice A) are often introduced later due to their higher sugar content. Pureed meats (choice B) and cooked egg whites (choice C) are usually introduced after iron-fortified cereal to provide additional sources of protein and other nutrients.

Correct Answer: C

Rationale: The correct answer is C. Eating crackers before getting out of bed can help manage nausea associated with hyperemesis gravidarum. Choice A is incorrect because drinking water with meals may exacerbate nausea. Choice B is incorrect as eating every 6 hours may not be frequent enough to combat nausea and vomiting. Choice D is incorrect because protein intake should not be limited during pregnancy, especially in cases of hyperemesis gravidarum.

Correct Answer: A

Rationale: The correct answer is A: S3 ventricular gallop. An S3 sound is a common finding in congestive heart failure due to fluid overload in the heart. It is associated with decreased ventricular compliance. Choices B, C, and D are incorrect. An apical click is not typically associated with congestive heart failure. A systolic murmur may be heard in conditions like mitral regurgitation but is not specific to congestive heart failure. A split S2 is associated with conditions like pulmonary hypertension, not congestive heart failure.