HESI LPN
HESI Mental Health Practice Exam
1. A client with schizophrenia is experiencing auditory hallucinations that command him to harm himself. What is the nurse's priority action?
- A. Ensure the client is not left alone.
- B. Document the content of the hallucinations.
- C. Administer PRN antipsychotic medication.
- D. Encourage the client to ignore the voices.
Correct answer: A
Rationale: The correct answer is to ensure the client is not left alone. When a client with schizophrenia is having auditory hallucinations that command self-harm, the priority is to ensure the client's safety. Leaving the client alone may increase the risk of self-harm. Documenting the content of the hallucinations (choice B) is important but not the priority when immediate safety is a concern. Administering PRN antipsychotic medication (choice C) may be necessary but is not the priority over ensuring the client's immediate safety. Encouraging the client to ignore the voices (choice D) is not as effective as ensuring the client's safety by being present and providing support.
2. A client with a diagnosis of myocardial infarction (MI) is being treated. Which laboratory value would be most concerning?
- A. Troponin level of 0.5 ng/mL
- B. Creatine kinase-MB (CK-MB) of 5.0 ng/mL
- C. Serum potassium of 4.5 mEq/L
- D. Blood glucose of 180 mg/dL
Correct answer: A
Rationale: A troponin level of 0.5 ng/mL is elevated, indicating myocardial damage, making it the most concerning finding in a client with a myocardial infarction (MI). Troponin is a highly specific marker for cardiac muscle damage, and elevated levels suggest ongoing injury to the heart muscle. While Creatine kinase-MB (CK-MB) is also a cardiac enzyme, troponin is more specific and sensitive for myocardial damage. Serum potassium and blood glucose levels are important parameters to monitor in MI patients, but in this scenario, the elevated troponin level takes precedence as it directly reflects cardiac injury.
3. What is the hallmark sign of intussusception?
- A. Mucus-like stools
- B. Currant jelly-like stools
- C. Tarry, black stools
- D. Green, soft stools
Correct answer: B
Rationale: The hallmark sign of intussusception is currant jelly-like stools, which result from the mixture of blood and mucus in the stool due to the sloughing of intestinal mucosa. Mucus-like stools (Choice A) are not typically associated with intussusception. Tarry, black stools (Choice C) are characteristic of gastrointestinal bleeding higher up in the gastrointestinal tract, such as from a peptic ulcer. Green, soft stools (Choice D) are more indicative of rapid transit through the intestines, possibly due to dietary factors or infections such as gastroenteritis.
4. The nurse is planning to assess a client's oxygen saturation to determine if additional oxygen is needed via nasal cannula. The client has bilateral below-the-knee amputations and weak, thread pedal pulses. What action should the nurse take?
- A. Document that an accurate oxygen saturation reading cannot be obtained
- B. Elevate the client's hands for five minutes prior to obtaining a reading from the finger
- C. Increase the oxygen based on the client's breathing patterns and lung sounds
- D. Place the oximeter clip on the earlobe to obtain the oxygen saturation reading
Correct answer: D
Rationale: Placing the oximeter clip on the earlobe is appropriate for clients with poor peripheral circulation, such as those with weak and thread pedal pulses due to bilateral below-the-knee amputations. This placement can provide a more accurate reading of oxygen saturation in such clients. Choice A is incorrect because alternative methods, such as earlobe placement, can be used to obtain accurate readings. Choice B is unnecessary and not related to obtaining an accurate oxygen saturation reading. Choice C is incorrect because increasing oxygen without assessing the oxygen saturation level first can be detrimental and is not based on evidence-based practice.
5. What should the nurse suggest to a parent asking for help with a child experiencing night terrors?
- A. Encourage the child to talk about the night terrors.
- B. Establish a bedtime routine.
- C. Allow the child to sleep with the parents.
- D. Wake the child during the night.
Correct answer: B
Rationale: Establishing a bedtime routine is the most appropriate suggestion for a parent seeking help with a child experiencing night terrors. Bedtime routines can create a sense of security and predictability for the child, potentially reducing the frequency of night terrors. Encouraging the child to talk about the night terrors (Choice A) may not be effective during the episode as the child is usually not fully awake. Allowing the child to sleep with the parents (Choice C) may inadvertently reinforce the behavior and hinder the child’s ability to learn to self-soothe. Waking the child during the night (Choice D) may disrupt the sleep cycle and exacerbate the night terrors.