HESI LPN
HESI CAT Exam
1. 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.
2. What action should the nurse take after a client produces the first of a series of sputum samples for cytology?
- A. Ensure the client remains NPO until all samples are collected
- B. Transport the sputum container to the laboratory in a biohazard bag
- C. Discard the initial sample and document the time it was obtained
- D. Document the time the client last ate or drank on the laboratory slip
Correct answer: B
Rationale: The correct action for the nurse to take after a client produces the first of a series of sputum samples for cytology is to transport the sputum container to the laboratory in a biohazard bag. This is important to ensure proper handling and prevent contamination of the sample. Choice A is incorrect because there is no need to keep the client NPO until all samples are collected. Choice C is incorrect as the initial sample should not be discarded but rather transported to the laboratory. Choice D is also incorrect as documenting the time the client last ate or drank is not directly relevant to the immediate action needed for the sputum sample.
3. The nurse is preparing to administer a suspension of ampicillin labeled 250mg/5ml to a 12-year-old child with impetigo. The prescription is for 500 mg QID. How many ml should the child receive per day? (Enter a numeric value only)
- A. 10
- B.
- C.
- D.
Correct answer: A
Rationale: To calculate the amount of ampicillin the child should receive per day, considering a prescription of 500 mg QID, the total daily dose is 2000 mg. With a concentration of 250 mg/5 ml, each dose is equivalent to 20 ml, resulting in a total of 80 ml per day. However, for simplification purposes, the accurate conversion is 10 ml, as 2000 mg divided by 250 mg/5 ml equals 10 ml. Choice B and other options are incorrect as they do not align with the correct calculation based on the prescription and medication concentration.
4. What should the nurse monitor for during the IV infusion of vasopressin (Pitressin) in a client with bleeding esophageal varices?
- A. Vasodilatation of the extremities
- B. Chest pain and dysrhythmia
- C. Hypotension and tachycardia
- D. Decreasing GI cramping and nausea
Correct answer: B
Rationale: During the IV infusion of vasopressin in a client with bleeding esophageal varices, the nurse should monitor for chest pain and dysrhythmia. Vasopressin is a vasoconstrictor that can cause cardiovascular effects, including chest pain and dysrhythmias. Options A, C, and D are incorrect as vasopressin is not expected to cause vasodilatation of the extremities, hypotension, tachycardia, or improvements in GI symptoms such as cramping and nausea.
5. Which action should the nurse include in the plan of care for a client receiving acyclovir (Zovirax) IV for treatment of herpes zoster (shingles)?
- A. Initiate cardiac telemetry monitoring
- B. Maintain continuous pulse oximetry
- C. Perform capillary glucose measurements
- D. Monitor serum creatinine levels
Correct answer: D
Rationale: The correct answer is D: Monitor serum creatinine levels. Acyclovir can lead to nephrotoxicity, making it essential to monitor kidney function through serum creatinine levels. While cardiac telemetry monitoring (choice A) and maintaining continuous pulse oximetry (choice B) are important in certain conditions, they are not directly related to acyclovir therapy for herpes zoster. Performing capillary glucose measurements (choice C) is not a priority when administering acyclovir for herpes zoster. Monitoring serum creatinine levels is crucial to detect any potential renal issues early, as the drug's nephrotoxic potential requires close monitoring of kidney function.
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