HESI LPN
HESI CAT Exam Test Bank
1. A client with myasthenia gravis (MG) is receiving immunosuppressive therapy. Review of recent laboratory test results shows that the client’s serum magnesium level has decreased below the normal range. In addition to contacting the healthcare provider, what nursing action is most important?
- A. Check the visual difficulties
- B. Note the most recent hemoglobin level
- C. Assess for hand and joint pain
- D. Observe rhythm on telemetry monitor
Correct answer: D
Rationale: The correct answer is to observe the rhythm on the telemetry monitor. Decreased magnesium levels can lead to cardiac issues, such as arrhythmias. Monitoring the heart rhythm is crucial in this situation. Checking visual difficulties (choice A) is not directly related to the potential cardiac effects of low magnesium levels. Noting the hemoglobin level (choice B) and assessing for hand and joint pain (choice C) are not the priority when dealing with low magnesium levels and possible cardiac complications.
2. An 8-year-old child who weighs 60 pounds receives an order for Polycilin (Ampicillin) suspension 25 mg/kg/day divided into a dose every 8 hours. The medication is labeled '125 mg/5 ml'. How many ml should the nurse administer per dose every 8 hours?
- A. 5
- B. 10
- C. 15
- D. 20
Correct answer: A
Rationale: Calculate the daily dose first: 60 pounds x 25 mg/kg = 1500 mg/day. Divide by 3 doses = 500 mg/dose. Convert to mL: (500 mg / 125 mg) x 5 ml = 20 ml. However, the question asks for the dose per administration every 8 hours, which is 1/3 of the daily dose. So, the correct calculation should be (20 ml / 3) = 6.67 ml, which rounds to 5 ml. Therefore, the correct answer is 5 ml. Choice B (10 ml) is incorrect because it doesn't consider the frequency of dosing. Choice C (15 ml) is incorrect as it overestimates the dose. Choice D (20 ml) is incorrect as it represents the total daily dose, not the dose per administration every 8 hours.
3. While eating at a restaurant, a gravid woman begins to choke and is unable to speak. What action should the nurse who witnesses the event take?
- A. Cardiopulmonary resuscitation with uterine tilt
- B. The Heimlich maneuver using chest thrusts
- C. The Heimlich maneuver using subdiaphragmatic thrusts
- D. Call 911 immediately then begin cardiopulmonary resuscitation
Correct answer: C
Rationale: The correct action for the nurse to take when a pregnant woman is choking and unable to speak is to perform the Heimlich maneuver using subdiaphragmatic thrusts. This technique is recommended for a pregnant woman to prevent harm to the fetus. Option A, cardiopulmonary resuscitation with uterine tilt, is not indicated for a choking episode. Option B, the Heimlich maneuver using chest thrusts, can potentially harm the gravid uterus. Option D, calling 911 immediately before providing assistance, can lead to a delay in addressing the immediate choking emergency.
4. Which techniques should be used to administer an intradermal (ID) injection for a Mantoux test to screen for tuberculosis (TB)? Select all that apply.
- A. Observe for an intradermal bleed after the antigen is injected
- B. Select an ID site using the volar surface of the forearm
- C. Use a 26 or 27-gauge needle with a length of 1/4 to 5/8 inches on a 1 ml calibrated syringe
- D. Ensure that the needle is inserted into the skin with the bevel up
Correct answer: A
Rationale: Observing for an intradermal bleed after the antigen is injected is a proper technique for an ID injection. This is important to confirm the correct placement of the injection. Choice B is correct because the recommended site for an ID injection for a Mantoux test is the volar surface of the forearm. Choice C is incorrect because the standard needle size for an ID injection is usually 26 or 27 gauge with a length of 1/4 to 5/8 inches, not 25 gauge with a length of 1/2 inch. Choice D is incorrect because the needle should be inserted into the skin with the bevel facing up, not down.
5. A male client with cirrhosis has jaundice and pruritus. He tells the nurse that he has been soaking in hot baths at night with no relief of his discomfort. What action should the nurse take?
- A. Explain that the symptoms are caused by liver damage and can be managed
- B. Obtain a PRN prescription for an analgesic that the client can use for symptom relief
- C. Encourage the client to use cooler water and apply oil-based lotion after soaking
- D. Suggest that the client take brief showers and apply oil-based lotion after showering
Correct answer: D
Rationale: Cooler water and oil-based lotion can help relieve pruritus and improve comfort in clients with cirrhosis experiencing jaundice and pruritus. Hot baths can exacerbate itching, so it is important to suggest cooler showers instead. Choice A is incorrect because symptoms like pruritus can be managed. Choice B is not the most appropriate initial intervention for pruritus related to liver disease. Choice C suggests the use of calamine lotion, which may not be as effective as oil-based lotion for relieving pruritus in this case.
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