Nursing Elites

1. What is the primary action of insulin in the body?

• A. To lower blood pressure.
• B. To promote the absorption of glucose into cells.
• C. To increase blood glucose levels.
• D. To decrease blood glucose levels.

Correct answer: B

Rationale: The correct answer is B: To promote the absorption of glucose into cells. Insulin facilitates the uptake of glucose by cells, thereby decreasing blood glucose levels. Choice A is incorrect as insulin does not directly affect blood pressure. Choice C is inaccurate as insulin works to lower, not increase, blood glucose levels. Choice D is incorrect because insulin's primary role is to lower, not increase, blood glucose levels by promoting glucose uptake into cells.

2. Prior to a percutaneous kidney biopsy, which actions should a nurse take? (Select all that apply.)

• A. Keep the client NPO for 4 to 6 hours.
• B. Obtain coagulation study results.
• C. Maintain strict bedrest in a supine position.
• D. A & B

Correct answer: D

Rationale: Prior to a percutaneous kidney biopsy, the nurse should ensure that the client is kept NPO for 4 to 6 hours to prevent aspiration during the procedure. Obtaining coagulation study results is crucial to assess the risk of bleeding during and after the biopsy. Strict bedrest in a supine position is not necessary before the procedure. It is important to note that blood pressure medications should be carefully managed, but it is not a pre-procedure action. Keeping the client on bedrest or assessing for blood in the urine are interventions that are more relevant post-procedure to monitor for complications.

3. Which lab result would be most indicative of renal failure?

• A. Elevated creatinine levels.
• B. Low potassium levels.
• C. Low calcium levels.
• D. High sodium levels.

Correct answer: A

Rationale: The correct answer is A: Elevated creatinine levels. Creatinine is a waste product that is normally filtered by the kidneys. Elevated creatinine levels indicate impaired kidney function, which is commonly seen in renal failure. Choice B, low potassium levels, is not typically associated with renal failure. In fact, renal failure is more likely to cause high potassium levels due to the kidneys' inability to excrete potassium effectively. Choice C, low calcium levels, are not directly indicative of renal failure. Renal failure can lead to disturbances in calcium levels, but low calcium levels alone are not a specific marker for renal failure. Choice D, high sodium levels, are also not typically associated with renal failure. In renal failure, there may be disturbances in sodium levels, but high sodium levels alone are not a direct indicator of renal failure.

4. A nurse performing nasopharyngeal suctioning suddenly notes the presence of bloody secretions. What should the nurse do first?

• A. Continue suctioning to remove the blood
• B. Check the degree of suction being applied
• C. Encourage the client to cough out the bloody secretions
• D. Remove the suction catheter from the client’s nose and begin vigorous suctioning through the mouth

Correct answer: B

Rationale: The correct answer is to check the degree of suction being applied (Choice B). When bloody secretions are encountered during nasopharyngeal suctioning, it is crucial to assess the situation promptly. Checking the degree of suction being applied is the first step as excessive suction pressure may be causing trauma and bleeding. Adjusting the suction pressure may be necessary to prevent further harm. Continuing suctioning to remove the blood (Choice A) or performing vigorous suctioning through the mouth (Choice D) can lead to increased trauma and worsen bleeding. Encouraging the client to cough out the bloody secretions (Choice C) is not appropriate since the client undergoing suctioning is typically unable to expectorate secretions. Therefore, the priority is to check and adjust the suction settings to ensure safe and effective suctioning.

5. Which client is at greatest risk for coronary artery disease?

• A. A 32-year-old female with mitral valve prolapse who quit smoking 10 years ago.
• B. A 43-year-old male with a family history of CAD and a cholesterol level of 158 (8.8 mmol/L).
• C. A 56-year-old male with an HDL of 60 (3.3 mmol/L) who takes atorvastatin.
• D. A 65-year-old female who is obese with an LDL of 188 (10.4 mmol/L).

Correct answer: D

Rationale: The 65-year-old female who is obese with a high LDL level of 188 (10.4 mmol/L) is at the greatest risk for coronary artery disease. Obesity and high LDL cholesterol levels are significant risk factors for developing coronary artery disease. While factors like mitral valve prolapse (choice A) and a family history of CAD (choice B) can contribute to the risk, they are not as significant as obesity and high LDL levels. Choice C, a 56-year-old male with high HDL and taking atorvastatin, is actually at lower risk due to the high HDL levels and being on statin therapy, which helps reduce cholesterol levels and lower the risk of coronary artery disease.

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