Nursing Elites

1. In a 46-year-old female client admitted for acute renal failure secondary to diabetes and hypertension, which test is the best indicator of adequate glomerular filtration?

• A. Serum creatinine.
• B. Blood urea nitrogen (BUN).
• C. Sedimentation rate.
• D. Urine specific gravity.

Correct answer: A

Rationale: The correct answer is A: Serum creatinine. Creatinine is a product of muscle metabolism that is filtered by the glomerulus. Blood levels of creatinine are not affected by dietary or fluid intake, making it a reliable indicator of kidney function. An elevated creatinine level strongly suggests nephron loss, indicating decreased glomerular filtration rate. Choice B, Blood Urea Nitrogen (BUN), reflects the amount of urea nitrogen in the blood and can be influenced by factors other than kidney function, such as protein intake and liver health, making it less specific for evaluating glomerular filtration. Choice C, Sedimentation rate, is a measure of how quickly red blood cells settle in a test tube and is not a direct marker of kidney function. Choice D, Urine specific gravity, mainly reflects the kidney's ability to concentrate urine and is not a direct indicator of glomerular filtration rate. Therefore, Serum creatinine is the most appropriate test to assess glomerular filtration in this scenario.

2. During nasotracheal suctioning, which of the following observations should be cause for concern to the nurse? Select all that apply.

• A. The client becomes cyanotic.
• B. Secretions are bloody.
• C. The client gags during the procedure.
• D. Clear to opaque secretions are removed.

Correct answer: C

Rationale: During nasotracheal suctioning, the client gagging during the procedure is a cause for concern as it can indicate discomfort or potential airway obstruction. Cyanosis, bloody secretions, or the removal of clear to opaque secretions are expected observations that the nurse should monitor for, but gagging indicates a need for immediate intervention to ensure the safety and comfort of the client. Cyanosis and bloody secretions can signify oxygenation issues and potential complications, while the removal of secretions is the goal of the suctioning procedure.

3. Which of the following medications is typically used to treat asthma?

• A. Aspirin
• B. Metformin
• C. Albuterol
• D. Lisinopril

Correct answer: C

Rationale: The correct answer is C, Albuterol. Albuterol is a bronchodilator commonly used to treat asthma by relaxing the muscles around the airways, helping to relieve symptoms such as coughing, wheezing, shortness of breath, and chest tightness. Aspirin (Choice A) is not typically used to treat asthma and can actually trigger asthma symptoms in some individuals. Metformin (Choice B) is a medication for managing type 2 diabetes and is not indicated for asthma treatment. Lisinopril (Choice D) is an angiotensin-converting enzyme (ACE) inhibitor primarily used to treat high blood pressure and heart failure, not asthma.

4. Following the diagnosis of angina pectoris, a client reports being unable to walk up two flights of stairs without pain. Which of the following measures would most likely help the client prevent this problem?

• A. Climb the stairs early in the day.
• B. Rest for at least an hour before climbing the stairs.
• C. Take a nitroglycerin tablet before climbing the stairs.
• D. Lie down after climbing the stairs.

Correct answer: C

Rationale: The correct answer is to take a nitroglycerin tablet before climbing the stairs. Nitroglycerin helps prevent angina by dilating the coronary arteries, which increases blood flow to the heart. This medication can help reduce the chest pain and discomfort experienced during physical exertion. Climing the stairs early in the day (Choice A) does not address the underlying issue of inadequate blood flow to the heart. Resting for at least an hour before climbing the stairs (Choice B) may not be as effective in preventing angina as taking nitroglycerin. Lying down after climbing the stairs (Choice D) does not offer a preventive measure for angina; it is more focused on post-activity rest rather than prevention.

5. A client has a urine specific gravity of 1.040. What action should the nurse take?

• A. Obtain a urine culture and sensitivity.
• B. Place the client on restricted fluids.
• C. Assess the client’s creatinine level.
• D. Increase the client’s fluid intake.

Correct answer: D

Rationale: A urine specific gravity of 1.040 is higher than the normal range (1.005 to 1.030) and can indicate dehydration, decreased kidney blood flow, or the presence of antidiuretic hormone. In this situation, the priority action should be to increase the client's fluid intake to address the high specific gravity. Obtaining a urine culture, placing the client on restricted fluids, or assessing the creatinine level would not directly address the underlying issue of high urine specific gravity caused by dehydration or other factors.

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