Correct Answer: B

Rationale: The correct answer is B: JVD. Jugular venous distention (JVD) is a common finding in right-sided heart failure due to fluid overload. This occurs because the right side of the heart is unable to effectively pump blood, leading to congestion and increased venous pressure, which is manifested as JVD. Choices A, C, and D are incorrect. Peripheral edema (choice A) is more commonly associated with left-sided heart failure. Crackles in the lungs (choice C) are indicative of pulmonary edema, often seen in left-sided heart failure. Hypotension (choice D) is not typically seen in right-sided heart failure, as it is more commonly associated with conditions like shock or severe dehydration.

Correct Answer: D

Rationale: An elevated WBC count should be reported to the provider as it may indicate an infection. Elevated white blood cell counts can be a sign of an underlying infection or inflammation. Monitoring and reporting abnormal laboratory values are essential for timely interventions. The other options, such as blood pressure, heart rate, and a sore throat, while important for overall assessment, are not directly related to the potential medical urgency indicated by an elevated WBC count.

Correct Answer: D

Rationale: The correct answer is to instruct the client to perform the peak flow test before using any bronchodilators. This is important because it provides the most accurate baseline measurement of lung function. Choice A is not necessarily crucial for the accuracy of the test. Choice B describes the technique for spirometry, not peak flow meter use. Choice C, while important for tracking trends, is not directly related to the accuracy of the initial measurement.

Correct Answer: B

Rationale: The correct answer is B: 'Check your pulse before taking this medication.' When a patient is prescribed digoxin, it is crucial to monitor their pulse rate because digoxin can cause bradycardia (slow heart rate) as a side effect. In contrast, choices A, C, and D are incorrect. Taking digoxin with meals is not necessary; it should be taken consistently at the same time every day. Taking digoxin with an antacid is not recommended as it can interfere with the absorption of the medication. While digoxin can cause hypokalemia (low potassium levels), patients should not increase their potassium intake without healthcare provider guidance to avoid potential complications.

Correct Answer: A

Rationale: Nagele's rule is a method used to calculate the expected delivery date by subtracting 3 months from the first day of the last menstrual period and adding 7 days. In this case, April 12 minus 3 months is January 12, plus 7 days gives January 19. Therefore, the correct answer is A. Choices B, C, and D do not align with the application of Nagele's rule and are incorrect.