Correct Answer: A

Rationale: The correct answer is A: WBC 3,000/mm³. A WBC count of 3,000/mm³ indicates neutropenia, which is a condition characterized by a low level of white blood cells, specifically neutrophils. Neutropenia increases the risk of infection and requires immediate medical attention, especially in clients undergoing chemotherapy. Reporting this result to the provider promptly is crucial for further evaluation and intervention. Choices B, C, and D are within normal ranges and do not pose an immediate risk to the client's health. Hemoglobin of 12 g/dL, platelet count of 250,000/mm³, and serum sodium of 140 mEq/L are all normal values and would not typically require immediate reporting unless there are specific concerns related to the individual client's condition.

Correct Answer: B

Rationale: The correct answer is B: Jitteriness of the hands. Jitteriness is a key sign of cold stress in a newborn, indicating the need for immediate warming measures. A respiratory rate of 60/min may not be directly indicative of cold stress. Diaphoresis (excessive sweating) and bounding peripheral pulses are not typical findings associated with cold stress in newborns.

Correct Answer: D

Rationale: Withholding heparin IV infusion is the priority if there is a risk of complications such as bleeding, which must be evaluated before continuing treatment.

Correct Answer: D

Rationale: The correct answer is D: 'This medication helps decrease swelling and mucus production.' Montelukast is used for long-term asthma management as it helps reduce inflammation and mucus production in the airways. It is not appropriate for acute asthma attacks. Choice A is incorrect because montelukast is not a rescue medication for acute attacks. Choice B is incorrect because montelukast is not specifically taken before exercise. Choice C is incorrect because montelukast is usually taken regularly, not just for a short duration.

Correct Answer: C

Rationale: The correct instruction for a client prescribed with doxazosin is to rise slowly when sitting up. Doxazosin can cause orthostatic hypotension, leading to dizziness upon sudden position changes. Instructing the client to rise slowly helps prevent this side effect. Choices A, B, and D are incorrect because they are not directly related to the potential side effects or administration of doxazosin.