Correct Answer: C

Rationale: Inadequate peripheral circulation can cause a low pulse oximetry reading by limiting blood flow to the area being measured, leading to inaccurate oxygen saturation readings. Hyperthermia (choice A) is an elevated body temperature and does not directly affect pulse oximetry readings. An increased hemoglobin level (choice B) would actually lead to higher oxygen-carrying capacity in the blood, resulting in normal or increased pulse oximetry readings. Low altitudes (choice D) typically do not cause low pulse oximetry readings unless there are other underlying conditions affecting oxygen levels.

Correct Answer: A

Rationale: The correct answer is to check potassium levels before administering furosemide. Furosemide is a diuretic that can cause hypokalemia (low potassium levels) as a side effect. Monitoring potassium levels is crucial to prevent potential complications related to electrolyte imbalance. Assessing blood glucose levels (choice B) is not directly related to furosemide administration. Monitoring respiratory rate (choice C) is important in certain situations, but it is not the priority before administering furosemide. Administering furosemide with food (choice D) is not a requirement as it can be administered regardless of meals.

Correct Answer: B

Rationale: Corrected Rationale: When a client is receiving morphine, monitoring the respiratory rate is crucial because morphine can cause respiratory depression. Therefore, it is essential for the nurse to assess the client's breathing to detect any signs of respiratory distress. Choices A, C, and D are incorrect because morphine primarily affects the respiratory system, not the liver function, blood glucose levels, or bowel sounds.

Correct Answer: B

Rationale: The correct answer is B: 'Dizziness.' Amlodipine, a calcium channel blocker used for hypertension, can cause dizziness due to its blood pressure-lowering effects. It is crucial for clients to report dizziness to their healthcare provider as it may indicate hypotension. Dry cough (choice A) is more commonly associated with ACE inhibitors, rash (choice C) may be seen in allergic reactions, and headache (choice D) is a less common side effect of amlodipine.

Correct Answer: B

Rationale: Encouraging the partner to ask for help when needed is the most appropriate action for the nurse to facilitate mourning. Grieving is a challenging process, and individuals may require support from others to cope effectively. Offering advice on coping strategies, discussing the importance of grieving alone, or suggesting avoiding talking about the loss could hinder the partner's mourning process by isolating them or suppressing their feelings.