Nursing Elites

1. The nurse is caring for a patient post-coronary artery bypass graft procedure who is on a nitroglycerin intravenous drip. The nurse understands the importance of nitroglycerin with this procedure as:

• A. Decreasing myocardial oxygen supply.
• B. Increasing preload.
• C. Decreasing cardiac output.
• D. Decreasing afterload.

Correct answer: D

Rationale: Nitroglycerin is a vasodilator that works by decreasing afterload, which is the pressure the heart must work against to eject blood during systole. By reducing afterload, nitroglycerin helps the heart pump more effectively and decreases the workload on the heart. This results in improved cardiac output and decreased myocardial oxygen demand. Choices A, B, and C are incorrect because nitroglycerin does not decrease myocardial oxygen supply, increase preload, or decrease cardiac output.

2. The nurse assesses a patient with pernicious anemia. Which assessment finding would the nurse expect?

• A. Yellow-tinged sclerae
• B. Shiny, smooth tongue
• C. Numbness of the extremities
• D. Gum bleeding and tenderness

Correct answer: C

Rationale: The correct answer is C: Numbness of the extremities. Numbness of the extremities is a common finding in patients with pernicious anemia, which is caused by cobalamin (vitamin B12) deficiency. This deficiency affects the peripheral nervous system, leading to neurological symptoms like numbness and tingling in the extremities. Choices A, B, and D are incorrect: Yellow-tinged sclerae is more indicative of jaundice or liver dysfunction, a shiny smooth tongue is seen in conditions like glossitis, and gum bleeding and tenderness are associated with periodontal disease or vitamin C deficiency, not pernicious anemia.

3. The nurse is caring for a patient in the cardiac unit recovering from a cardiac bypass graft procedure. The patient's spouse comes out to the hallway and expresses concern about the patient's confusion since surgery was 3 days ago. An appropriate response by the nurse would be:

• A. Let me call the doctor right away.
• B. What specific concerns do you have?
• C. It is common for confusion to occur after this procedure.
• D. I'll have the counselor come meet you in the room.

Correct answer: C

Rationale: Choice C is the correct answer because confusion can be a common occurrence after cardiac surgeries due to factors such as anesthesia, medication, and the stress of the procedure. By acknowledging the spouse's concern and explaining that confusion is a known potential outcome, the nurse provides reassurance and education. Choices A, B, and D are incorrect because they do not directly address the spouse's concern about the patient's confusion or provide appropriate information about the situation.

4. The nurse is reviewing laboratory results and notes a patient's activated partial thromboplastin time (aPTT) level of 28 seconds. The nurse should notify the health care provider in anticipation of adjusting which medication?

• A. Aspirin
• B. Heparin
• C. Warfarin
• D. Erythropoietin

Correct answer: B

Rationale: The correct answer is B: Heparin. An activated partial thromboplastin time (aPTT) level of 28 seconds indicates a prolonged time, which is associated with heparin administration. Heparin is an anticoagulant medication that affects the intrinsic pathway of the coagulation cascade, leading to an increased aPTT. Aspirin (choice A) affects platelet aggregation and does not directly impact aPTT. Warfarin (choice C) affects the extrinsic pathway of the coagulation cascade and is monitored using the international normalized ratio (INR), not aPTT. Erythropoietin (choice D) is not related to coagulation parameters.

5. Which patient statement to the nurse indicates a need for additional instruction about taking oral ferrous sulfate?

• A. I will call my health care provider if my stools turn black.
• B. I will take a stool softener if I feel constipated occasionally.
• C. I should take the iron with orange juice about an hour before eating.
• D. I should increase my fluid and fiber intake while I am taking iron tablets.

Correct answer: A

Rationale: It is normal for the stools to appear black when a patient is taking iron, and the patient should not call the health care provider about this.

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