A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value should the nurse monitor closely?

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Question 1 of 5

A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value should the nurse monitor closely?

Correct Answer: C

Rationale: The correct answer is C, International Normalized Ratio (INR). The INR should be closely monitored in a client prescribed warfarin (Coumadin) to assess the effectiveness and safety of anticoagulation therapy. Monitoring the INR helps ensure that the client is within the therapeutic range for anticoagulation, reducing the risk of bleeding or clotting complications. Prothrombin time (A) is used to calculate the INR and monitor the effectiveness of warfarin therapy. Hemoglobin level (B) is important but not the primary lab value to monitor when a client is on warfarin. Serum sodium level (D) is not directly related to monitoring warfarin therapy.

Question 2 of 5

The nurse is assessing a client with chronic obstructive pulmonary disease (COPD) who is receiving supplemental oxygen. Which laboratory value is most concerning?

Correct Answer: C

Rationale: A serum bicarbonate level of 18 mEq/L is most concerning in a client with COPD as it indicates metabolic acidosis, requiring immediate intervention. In COPD, patients often retain carbon dioxide, leading to respiratory acidosis. A low serum bicarbonate level suggests that the body is compensating for this respiratory acidosis by increasing bicarbonate levels to maintain balance. Therefore, a low serum bicarbonate level in this scenario is alarming. Choices A, B, and D are within normal ranges and not directly related to the acid-base imbalance seen in COPD.

Question 3 of 5

The nurse is caring for a client with chronic kidney disease (CKD) who is receiving erythropoietin therapy. Which assessment finding is most concerning?

Correct Answer: C

Rationale: In a client with chronic kidney disease (CKD) receiving erythropoietin therapy, an elevated blood pressure is the most concerning assessment finding. This finding can indicate worsening hypertension, which requires prompt intervention to prevent complications such as cardiovascular events or further kidney damage. Increased fatigue (Choice A) is a common symptom in CKD and can be expected with the condition itself or the treatment. Headache (Choice B) can also occur but is less specific to CKD or its treatment. Low urine output (Choice D) is a concern in CKD but may not be directly related to erythropoietin therapy.

Question 4 of 5

The nurse is assessing a client with left-sided heart failure. Which finding is most concerning?

Correct Answer: C

Rationale: Shortness of breath is most concerning in a client with left-sided heart failure as it indicates pulmonary congestion, requiring immediate intervention. Jugular venous distention (Choice A) is a sign of increased central venous pressure but is not as concerning as pulmonary congestion. Crackles in the lungs (Choice B) are common in heart failure due to fluid accumulation but are not as immediately concerning as severe shortness of breath. Peripheral edema (Choice D) is a manifestation of fluid retention in the body but is less indicative of acute pulmonary distress compared to shortness of breath.

Question 5 of 5

At 0600 while admitting a woman for a scheduled repeat cesarean section (C-Section), the client tells the nurse that she drank a cup of coffee at 0400 because she wanted to avoid getting a headache. Which action should the nurse take first?

Correct Answer: C

Rationale: The correct action for the nurse to take first is to inform the anesthesia care provider. The patient's ingestion of coffee violates the NPO (nothing by mouth) guidelines before surgery, which increases the risk of aspiration during anesthesia. Informing the anesthesia care provider promptly allows for appropriate assessment and decision-making regarding the patient's anesthesia plan. Ensuring preoperative lab results, starting an IV, or contacting the obstetrician can be important steps but addressing the NPO violation and its implications on anesthesia safety take precedence.

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