Medical Surgical HESI

HESI LPN

1. While planning care for a client with carpal tunnel syndrome, the nurse identifies a collaborative problem of pain. What is the etiology of this problem?

A. Irritation of nerve endings
B. Diminished blood flow
C. Ischemic tissue changes
D. Compression of a nerve

Correct answer: D

Rationale: The correct answer is D: Compression of a nerve. In carpal tunnel syndrome, pain arises from the compression of the median nerve within the carpal tunnel. This compression leads to symptoms such as pain, numbness, and tingling in the hand and arm. Choices A, B, and C are incorrect because carpal tunnel syndrome pain is primarily caused by the physical compression of the nerve, rather than irritation of nerve endings, diminished blood flow, or ischemic tissue changes.

2. Which statement correctly explains the etiology of Down syndrome?

A. There is an extra chromosome on the 21st pair.
B. There is a missing chromosome on the 21st pair.
C. There are two pairs of the 21st chromosome.
D. The 21st chromosome pair is missing.

Correct answer: A

Rationale: The correct answer is A: 'There is an extra chromosome on the 21st pair.' Down syndrome is caused by the presence of an extra copy of chromosome 21, known as trisomy 21. This additional genetic material leads to the characteristics associated with Down syndrome. Choices B, C, and D are incorrect because Down syndrome is not due to a missing chromosome or having two pairs of the 21st chromosome; it results from the presence of an extra chromosome on the 21st pair.

3. A healthcare worker with no known exposure to tuberculosis has received a Mantoux tuberculosis skin test. The nurse's assessment of the test after 62 hours indicates 5mm of erythema without induration. Which is the best initial nursing action?

A. Review the healthcare worker's history for possible exposure to TB.
B. Instruct the healthcare worker to return for a repeat test in 1 week.
C. Refer the healthcare worker to a healthcare provider for isoniazid (INH) therapy.
D. Document negative results in the healthcare worker's medical record.

Correct answer: D

Rationale: A Mantoux tuberculosis skin test without induration is considered negative. In this case, with 5mm of erythema and no induration, the result is negative, indicating no current infection. The best initial nursing action is to document these negative results in the healthcare worker's medical record. Reviewing the history for possible exposure to TB is unnecessary as the test result is negative. Instructing the healthcare worker to return for a repeat test or referring for INH therapy is not warranted when the test is negative.

4. A client is currently receiving an infusion labeled as 5% dextrose injection 500 ml with heparin sodium 25,000 units at 14 mL/hour per pump. A prescription is received to change the rate of the infusion to heparin 1,000 units/hour. How many ml/hour should the nurse program the infusion pump?

A. 16 ml/hour.
B. 18 ml/hour.
C. 20 ml/hour.
D. 22 ml/hour.

Correct answer: C

Rationale: To deliver 1,000 units/hour from a solution with 25,000 units in 500 ml, the rate should be set to 20 ml/hour. This is calculated by determining that the solution has 50 units/ml (25,000 units / 500 ml = 50 units/ml) and then dividing the required 1,000 units/hour by 50 units/ml, resulting in 20 ml/hour. Therefore, the nurse should program the infusion pump to deliver heparin at 20 ml/hour. Choices A, B, and D are incorrect as they do not align with the calculated rate of 20 ml/hour.

5. During the admission interview, an older client answers some questions inappropriately. The nurse notes that a hearing aid is in one ear. Which intervention is most helpful in assisting the client to hear the nurse’s question?

A. Move to the client's other side.
B. Speak louder into the client's ear with the hearing aid.
C. Ask the client to adjust the hearing aid volume.
D. Restate questions articulating consonants carefully.

Correct answer: D

Rationale: Restating questions with clear articulation is the most helpful intervention in assisting the client to hear the nurse's question. This approach ensures that the client can better understand the question, especially if there are issues with the hearing aid. Moving to the client's other side or speaking louder into the ear with the hearing aid may not effectively address the problem of clarity in communication. Asking the client to adjust the hearing aid volume assumes that the issue lies solely with the volume, while restating questions with clear articulation can help overcome various hearing difficulties.