an emergency department nurse cares for a client who is severely dehydrated and is prescribed 3 l of intravenous fluid over 6 hours at what rate mlhr
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Nursing Elites

HESI RN

Evolve HESI Medical Surgical Practice Exam

1. A client in the emergency department is severely dehydrated and is prescribed 3 L of intravenous fluid over 6 hours. At what rate (mL/hr) should the nurse set the intravenous pump to infuse the fluids? (Record your answer using a whole number.)

Correct answer: A

Rationale: To calculate the rate of the intravenous pump, divide the total volume of fluid (3 L = 3000 mL) by the total time in hours (6 hours), which equals 500 mL/hr. The correct answer is A. Choice B (400 mL/hr) is incorrect as it would result in a slower infusion rate. Choice C (550 mL/hr) and Choice D (600 mL/hr) are incorrect as they would result in a faster infusion rate, exceeding the prescribed amount of fluid to be infused over 6 hours.

2. When obtaining the health history of a client suspected of having bladder cancer, which question should the nurse ask to determine the client's risk factors?

Correct answer: A

Rationale: The correct answer is A: 'Do you smoke cigarettes?' Smoking is a major risk factor for bladder cancer. Cigarette smoke contains harmful chemicals that can accumulate in the urine and damage the lining of the bladder, increasing the risk of developing cancer. Alcohol use, recreational drug use, and most prescription drugs are not directly linked to an increased risk of bladder cancer. It is important for the nurse to assess smoking history as a significant risk factor in determining the client's risk for bladder cancer.

3. A client's urinalysis results show a urine osmolality of 1200 mOsm/L. What action should the nurse take?

Correct answer: A

Rationale: The correct action for the nurse to take when the client has a urine osmolality of 1200 mOsm/L, indicating dehydration, is to encourage the client to drink more fluids. Dehydration can lead to elevated urine osmolality, and increasing fluid intake can help rehydrate the client. A low-sodium diet is not the priority in this scenario as it would not directly address the dehydration indicated by the high urine osmolality. Administering an intravenous diuretic would further concentrate the urine, exacerbating the dehydration. Obtaining a suction device and implementing seizure precautions are not indicated based on the client's urine osmolality results and would not address the underlying issue of dehydration.

4. How can a nurse best help a client undergoing a bone marrow aspiration and biopsy, along with two upset family members, manage anxiety during the procedure?

Correct answer: C

Rationale: Encouraging the client to take slow, deep breaths is an effective way for the nurse to help the client manage anxiety during the bone marrow aspiration and biopsy procedure. Slow, deep breathing can promote relaxation and help reduce anxiety levels. Choice A, allowing the client's family to stay for emotional support, may provide comfort but does not address a direct intervention to help manage anxiety. Choice B, staying with the client silently, may not actively help the client address their anxiety. Choice D, allowing the client to express feelings, is important but may not directly address anxiety management during the procedure.

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

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.

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