a client with a history of atrial fibrillation is prescribed warfarin coumadin which laboratory value is most concerning
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Nursing Elites

HESI RN

HESI 799 RN Exit Exam Quizlet

1. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value is most concerning?

Correct answer: A

Rationale: An INR of 3.0 is most concerning in a client prescribed warfarin (Coumadin) as it indicates a high risk of bleeding, requiring immediate intervention. A high INR value suggests that the blood is taking longer to clot, putting the patient at an increased risk of hemorrhage. Prothrombin time (PT) measures how long it takes for blood to clot, but the specific value of 15 seconds is within the normal range. Hemoglobin of 10 g/dl indicates mild anemia and does not directly relate to the risk of bleeding associated with warfarin therapy. White blood cell count assesses immune function and infection risk, but it is not directly related to the anticoagulant effects of warfarin.

2. The nurse needs to add a medication to a liter of 5% Dextrose in Water (D5W) that is already infusing into a client. At what location should the nurse inject the medication?

Correct answer: A

Rationale: The correct answer is the medication port. When adding medication to an already infusing IV solution, it should be done through the medication port to ensure direct delivery into the bloodstream without interrupting the primary IV line. Injecting the medication into the IV drip chamber, Y-site connector, or at the hub of the IV catheter can lead to dilution, inaccurate dosing, or potential blockages in the IV line, which can compromise the effectiveness of the medication and patient safety.

3. A client is admitted with a diagnosis of sepsis. Which assessment finding is most concerning to the nurse?

Correct answer: D

Rationale: A blood pressure of 90/60 mmHg in a client with sepsis is concerning for septic shock, a life-threatening condition that requires immediate intervention. Hypotension is a severe manifestation of sepsis that can lead to poor tissue perfusion and organ failure. While the other assessment findings such as an elevated temperature, increased heart rate, and respiratory rate are also common in sepsis, hypotension is particularly alarming as it indicates a critical state of shock and necessitates urgent medical attention.

4. The nurse is caring for a client with chronic obstructive pulmonary disease (COPD) who is receiving supplemental oxygen. Which finding indicates the need for immediate intervention?

Correct answer: C

Rationale: A carbon dioxide level of 45 mmHg is concerning in a client with COPD receiving supplemental oxygen, as it may indicate carbon dioxide retention and requires immediate intervention. Options A, B, and D are not the priority findings in this scenario. While the use of accessory muscles, an oxygen saturation of 94%, and a respiratory rate of 20 breaths per minute are important to monitor in a client with COPD, they do not indicate an immediate need for intervention like an elevated carbon dioxide level does.

5. In caring for a client with a PCA infusion of morphine sulfate through the right cephalic vein, the nurse assesses that the client is lethargic with a blood pressure of 90/60 mm Hg, a pulse rate of 118 beats per minute, and a respiratory rate of 8 breaths per minute. What assessment should the nurse perform next?

Correct answer: D

Rationale: In this scenario, the client is presenting with signs of potential opioid overdose, such as lethargy, hypotension, tachycardia, and bradypnea. The next assessment the nurse should perform is to observe the amount and dose of morphine in the PCA pump syringe. This evaluation is crucial in determining if the client is receiving an excessive amount of morphine, leading to the observed symptoms. Checking the PCA pump syringe will provide essential information to address the client's condition promptly and prevent further complications. Choices A, B, and C are not the priority in this situation as they do not directly address the potential cause of the client's symptoms related to morphine administration.

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