HESI RN
HESI Medical Surgical Assignment Exam
1. A client has a chest drainage system in place. The fluid in the water seal chamber rises and falls during inspiration and expiration. The nurse interprets this finding as an indication that:
- A. The tube is patent
- B. There is probably a kink in the tubing
- C. Suction should be added to the system
- D. The client is retaining airway secretions
Correct answer: A
Rationale: The correct answer is A: 'The tube is patent.' When the fluid in the water seal chamber rises and falls during inspiration and expiration, it indicates that the chest tube is patent, allowing for proper drainage. Choice B is incorrect because a kink in the tubing would obstruct the flow of fluid, leading to abnormal fluctuations in the water seal chamber. Choice C is incorrect as adding suction to the system is not indicated based on the described finding. Choice D is incorrect as the rising and falling of fluid in the water seal chamber is not indicative of the client retaining airway secretions.
2. A client is tested for HIV with the use of an enzyme-linked immunosorbent assay (ELISA), and the test result is positive. The nurse should tell the client that:
- A. HIV infection has been confirmed
- B. The client probably has an opportunistic infection
- C. The test will need to be confirmed with the use of a Western blot
- D. A positive test is a normal result and does not mean that the client is infected with HIV
Correct answer: C
Rationale: When an ELISA test for HIV is positive, it is essential to confirm the result with a Western blot. The Western blot is the confirmatory test for HIV. Choice A is incorrect because a positive ELISA test does not confirm HIV infection. Choice B is incorrect as it assumes a different diagnosis. Choice D is incorrect because a positive ELISA test does indicate potential HIV infection and requires confirmation.
3. What is the most common side effect of diuretics such as furosemide (Lasix)?
- A. Hypokalemia.
- B. Hyperkalemia.
- C. Hypernatremia.
- D. Hyponatremia.
Correct answer: A
Rationale: The correct answer is 'Hypokalemia.' Diuretics like furosemide increase the excretion of potassium, leading to hypokalemia as a common side effect. Hyperkalemia (choice B) is the opposite condition characterized by high potassium levels, which is not typically associated with furosemide use. Hypernatremia (choice C) is increased sodium levels, while hyponatremia (choice D) is decreased sodium levels, neither of which are the most common side effects of furosemide. Therefore, choice A is the best answer.
4. An adult client who received partial thickness burns on 40% of the body in a house fire is admitted to the inpatient burn unit. Which fluid should the nurse prepare to administer during the client's burn recovery?
- A. 5% dextrose in water
- B. 5% dextrose in 0.25 normal saline
- C. Total parenteral nutrition
- D. Lactated Ringer's
Correct answer: D
Rationale: During the burn recovery phase, the nurse should prepare to administer Lactated Ringer's solution. Lactated Ringer's is the preferred fluid choice for burn patients as it helps replace lost fluids and electrolytes, maintain perfusion, and support organ function. Option A, 5% dextrose in water, is not the appropriate choice for fluid resuscitation in burn patients. Option B, 5% dextrose in 0.25 normal saline, does not provide the necessary electrolytes needed for burn recovery. Option C, Total parenteral nutrition, may be considered later in the treatment but is not the initial fluid of choice for burn recovery.
5. The nurse is preparing to administer the first dose of an antibiotic to a patient admitted for a urinary tract infection. Which action is most important prior to administering the antibiotic?
- A. Administering a small test dose to determine if hypersensitivity exists
- B. Having epinephrine available in case of a severe hypersensitivity reaction
- C. Monitoring baseline vital signs, including temperature and blood pressure
- D. Obtaining a specimen for culture and sensitivity
Correct answer: D
Rationale: The most crucial action before administering an antibiotic for a urinary tract infection is to obtain a specimen for culture and sensitivity. This ensures the accurate identification of the causative organism and helps determine the most effective antibiotic therapy. Administering a test dose to detect hypersensitivity is usually reserved for cases with a strong suspicion of allergy to a needed antibiotic. Keeping epinephrine available is important when there is a significant risk of a severe allergic reaction. Monitoring baseline vital signs is essential during antibiotic therapy but is not the top priority before administering the first dose.
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