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. A client with stress incontinence is being taught about pelvic muscle exercises. Which statements should be included by the nurse? (Select all that apply.)

• A. Starting and stopping the urine stream involves using pelvic muscles.
• B. Tighten pelvic muscles for a slow count of 10 and then relax for a slow count of 10.
• C. Pelvic muscle exercises can be performed in various positions: lying down, sitting up, and standing.
• D. A & B

Correct answer: D

Rationale: The correct statements to include when teaching a client with stress incontinence about pelvic muscle exercises are that starting and stopping the urine stream involve using pelvic muscles and that tightening pelvic muscles for a slow count of 10 and then relaxing for a slow count of 10 can help strengthen them. It is essential to highlight that pelvic muscle exercises can be performed in various positions, including lying down, sitting up, and standing. This variety in positions helps engage the muscles effectively. Performing these exercises 15 times in each position can aid in strengthening the pelvic floor muscles. Consistent exercise over several weeks typically leads to improved control over urine leakage. Choice C is incorrect because pelvic muscle exercises can be performed in different positions and are not limited to sitting upright with feet on the floor.

3. Which is a characteristic that distinguishes sulfonamides from other drugs used to treat bacterial infections?

• A. Sulfonamides are bactericidal.
• B. Sulfonamides are synthetic compounds.
• C. Sulfonamides have antifungal and antiviral properties.
• D. Sulfonamides increase bacterial synthesis of folic acid.

Correct answer: B

Rationale: The characteristic that distinguishes sulfonamides from other drugs used to treat bacterial infections is that sulfonamides are synthetic compounds, not derived from biologic substances. Choice A is incorrect because sulfonamides are bacteriostatic, not bactericidal. Choice C is incorrect because sulfonamides do not have antifungal and antiviral properties. Choice D is incorrect because sulfonamides act by inhibiting bacterial synthesis of folic acid, not increasing it.

4. A client taking furosemide (Lasix) reports difficulty sleeping. What question is important for the nurse to ask the client?

• A. What dose of medication are you taking?
• B. Are you eating foods rich in potassium?
• C. Have you lost weight recently?
• D. At what time do you take your medication?

Correct answer: D

Rationale: The nurse needs to determine at what time of day the client takes the Lasix. Due to the diuretic effect of Lasix, clients should take the medication in the morning to prevent nocturia, which may be contributing to the sleep difficulties. Asking about the dose of medication (Choice A) is important but addressing the timing of intake is more crucial in this situation. Inquiring about potassium-rich foods (Choice B) is relevant for clients on potassium-sparing diuretics. Weight loss (Choice C) may be relevant for monitoring the client's overall health but is not directly related to the sleep issue in this case.

5. The nurse is caring for a newly admitted patient who has severe gastroenteritis. The patient’s electrolytes reveal a serum sodium level of 140 mEq/L and a serum potassium level of 3.5 mEq/L. The nurse receives an order for intravenous 5% dextrose and normal saline with 20 mEq/L potassium chloride to infuse at 125 mL per hour. Which action is necessary prior to administering this fluid?

• A. Evaluate the patient’s urine output.
• B. Contact the provider to order arterial blood gases.
• C. Request an order for an initial potassium bolus.
• D. Suggest a diet low in sodium and potassium.

Correct answer: A

Rationale: Prior to administering IV fluids containing potassium, it is crucial to evaluate the patient's urine output. If the urine output is less than 25 mL/hr or 600 mL/day, there is a risk of potassium accumulation. Patients with low urine output should not receive IV potassium to prevent potential complications. Contacting the provider for arterial blood gases is unnecessary in this scenario as it does not directly relate to the administration of IV fluids with potassium. Administering potassium as a bolus is not recommended due to potential adverse effects. While dietary considerations are important, suggesting a low-sodium and low-potassium diet is not the immediate action required before administering IV fluids with potassium chloride.

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