Correct Answer: C

Rationale: The correct answer is to participate in compressions or breathing. This is essential to ensure continuous and effective CPR. Relieving the nurse performing CPR (Choice A) is not recommended as it can interrupt the life-saving procedure. Going to get the code cart (Choice B) may be necessary in certain situations but should not take precedence over providing immediate assistance in CPR. Validating the client's advanced directive (Choice D) is not the primary role in this scenario where urgent action is needed to support the client's circulation and breathing.

Correct Answer: D

Rationale: A baby with nonorganic failure-to-thrive often appears pale, thin, and uninterested in their surroundings. Choice A is incorrect as 'irritable and colicky with no attempts to pull to standing' is more indicative of other conditions like colic. Choice B is incorrect as a baby with nonorganic failure-to-thrive is unlikely to be alert, laughing, and playing, as they would typically present with signs of failure to thrive. Choice C is incorrect as dusky skin color and poor skin turgor are not typical findings in a baby with nonorganic failure-to-thrive.

Correct Answer: A

Rationale: The correct answer is A because limiting high-sodium foods is essential in managing hypertension and preventing complications. High sodium intake can lead to increased blood pressure levels. Choice B is important too, but solely relying on medications without lifestyle modifications may not be as effective in controlling hypertension. Choice C is also crucial for monitoring progress, but without dietary changes, blood pressure control may be challenging. Choice D, limiting high-fat foods, is beneficial for overall health but is not as directly related to managing hypertension as limiting high-sodium foods.

Correct Answer: C

Rationale: The belief stated in option C is incorrect about acupuncture. Acupuncture is based on the concept of qi flowing through major pathways in the body, known as meridians, rather than nerve clusters. This traditional Chinese medicine practice aims to balance the flow of qi to promote health and healing. Options A, B, and D are consistent with the principles of acupuncture and are not incorrect beliefs. Option A describes the depth and duration of needle placement, option B explains the role of imbalances in qi flow causing illness, and option D outlines how acupuncture helps rebalance energy flow for the body's natural healing mechanisms.

Correct Answer: A

Rationale: The correct answer is A because peanut butter and egg whites are not recommended for infants under 12 months due to the risk of choking and allergies. Choices B, C, and D are appropriate food choices for an 8-month-old infant. Rice cereal, crackers, pureed liver, strained pears, applesauce, and green peas are all suitable options for introducing solid foods to infants.