HESI Practice Test for Fundamentals

Correct Answer: C

Rationale: The correct answer is C, 'Decreased potassium.' Clients with bulimia often have decreased potassium levels due to frequent vomiting, which causes a loss of this essential electrolyte. This loss can lead to various complications such as cardiac arrhythmias. Option A, 'Increased serum glucose,' is not typically associated with bulimia. Option B, 'Decreased albumin,' is more related to malnutrition or liver disease rather than bulimia. Option D, 'Increased sodium retention,' is not a common finding in clients with bulimia; instead, they may experience electrolyte imbalances like hyponatremia due to purging behaviors.

Correct Answer: A

Rationale: In a client with pneumonia, assessing breath sounds is crucial as it provides immediate information about the client's respiratory status. Changes in breath sounds could indicate complications like fluid accumulation or worsening pneumonia. While the client's history of smoking (Choice B), current medication list (Choice C), and family history of respiratory illness (Choice D) are important factors to consider, they are not as urgent or directly related to the client's immediate condition as assessing breath sounds.

Correct Answer: C

Rationale: At 0100 on the client's second postoperative night, the nurse should address the client's inability to sleep. Providing a prescribed PRN sedative-hypnotic is appropriate in this situation to help the client rest. Choice A is incorrect because leaving the room and closing the door does not directly address the client's sleep concern. Choice B is not the priority at this moment since the client's main issue is insomnia, not pain. Choice D, while encouraging a non-stimulating activity, does not provide immediate relief for the client's sleeplessness as a sedative-hypnotic would.

Correct Answer: B

Rationale: The correct answer is B. Gently applying pressure to the front part of the ear after administering drops helps with absorption. Pulling the ear down and back is a correct technique for adults. Snugly inserting the nozzle of the ear drop bottle or placing a cotton ball all the way into the ear canal is unnecessary and can potentially cause harm or discomfort. Therefore, choices A, C, and D are incorrect.

Correct Answer: A

Rationale: Muscle weakness is a hallmark symptom of myasthenia gravis, a neuromuscular disorder characterized by impaired neuromuscular transmission. This results in muscle weakness, particularly in skeletal muscles that control eye movements, facial expressions, chewing, swallowing, and speaking. Joint pain (Choice B) is not a typical symptom of myasthenia gravis and is more commonly associated with conditions like arthritis. Vision changes (Choice C) may occur in conditions affecting the eyes, but they are not specific to myasthenia gravis. Skin rash (Choice D) is also not a typical manifestation of myasthenia gravis. Therefore, the correct answer is muscle weakness (Choice A).