Correct Answer: C

Rationale: The correct answer is C: Serum potassium. When a client with chronic kidney disease (CKD) is receiving epoetin alfa (Epogen), monitoring serum potassium levels closely is crucial. Epoetin alfa stimulates red blood cell production, which can lead to an increase in potassium levels. Hyperkalemia is a potential risk in these clients. Monitoring hemoglobin levels (choice A) is important in assessing the effectiveness of epoetin alfa therapy, but it is not the laboratory value that poses an immediate risk related to the medication. White blood cell count (choice B) and serum creatinine (choice D) are not directly affected by epoetin alfa therapy and are not the priority laboratory values to monitor in this case.

Correct Answer: A

Rationale: The correct action for the nurse to implement is to digitally check the client for a fecal impaction. In this scenario, the client's presentation of frequent small amounts of liquid stool after a period of no bowel movement suggests a possible impaction. By performing a digital examination, the nurse can assess for the presence of a blockage that may be causing the symptoms. Administering a laxative (Choice B) without assessing for impaction can worsen the situation. Increasing fluid intake (Choice C) is generally beneficial for bowel health but may not address the immediate issue of a potential impaction. Performing a digital rectal examination (Choice D) is similar to Choice A but is more focused on assessing the rectum itself rather than checking for an impaction.

Correct Answer: C

Rationale: The correct answer is C. The presence of a new murmur in a client with heart failure receiving digoxin and furosemide is concerning as it may indicate valvular problems or other complications that require immediate intervention. A heart rate of 60 beats per minute and an apical pulse of 58 beats per minute are within normal limits for a client with heart failure on these medications. A blood pressure of 100/60 mmHg, while slightly low, may be expected due to the diuretic effect of furosemide and may not require immediate intervention unless the client is symptomatic.

Correct Answer: D

Rationale: The correct answer is D. Limiting caffeine intake is a positive lifestyle modification for managing hypertension. The statement indicates that the client understands the importance of reducing caffeine intake. Choices A, B, and C all reflect appropriate lifestyle modifications for managing hypertension, indicating good understanding by the client.

Correct Answer: D

Rationale: Assessing fundal tone and lochia flow is crucial in the immediate postpartum period to detect postpartum hemorrhage, a life-threatening complication. Monitoring these parameters allows for early identification of excessive bleeding, enabling prompt intervention. While maintaining cold packs to the perineum, assessing pain levels, and observing for appropriate interaction with the infant are important aspects of postpartum care, assessing fundal tone and lochia flow takes precedence due to its direct relevance to identifying and managing a potential emergency situation.