HESI LPN
CAT Exam Practice Test
1. Identify the placement of the stapes footplate into the bony labyrinth.
- A. Fenestra vestibuli
- B. Fenestra cochleae
- C. Tympanic membrane
- D. Round window
Correct answer: A
Rationale: The correct answer is A: Fenestra vestibuli. The stapes footplate is placed into the fenestra vestibuli of the bony labyrinth. This structure is also known as the oval window and is located at the junction of the middle ear and inner ear. Choice B, Fenestra cochleae, is incorrect as this opening is also known as the round window and is located near the base of the cochlea. Choice C, Tympanic membrane, is incorrect as it is also known as the eardrum and separates the external ear from the middle ear. Choice D, Round window, is incorrect as it is the opening covered by the secondary tympanic membrane and is important for the dissipation of sound waves in the cochlea.
2. What nursing intervention is particularly indicated for the second stage of labor?
- A. Providing pain medication to increase the client’s tolerance of labor
- B. Assessing the fetal heart rate and pattern for signs of fetal distress
- C. Monitoring effects of oxytocin administration to help achieve cervical dilation
- D. Assisting the client to push effectively so that the expulsion of the fetus can be achieved
Correct answer: D
Rationale: During the second stage of labor, assisting the client to push effectively is crucial for the delivery of the fetus. This action helps to facilitate the expulsion of the fetus from the uterus. Providing pain medication (Choice A) is not typically done during the second stage of labor as the focus shifts to pushing and delivery. Assessing the fetal heart rate (Choice B) is important but is more relevant throughout labor, not specifically for the second stage. Monitoring the effects of oxytocin administration (Choice C) is more associated with the first stage of labor to help with uterine contractions and cervical dilation.
3. When designing a plan of care for a client diagnosed with pheochromocytoma, a goal statement should be prepared that relates to which topic?
- A. Psychological counseling to address emotional well-being
- B. Medication teaching concerning adrenergic blockers
- C. Preoperative and postoperative teaching for adrenalectomy
- D. Education on dietary modifications for hypertension
Correct answer: C
Rationale: The correct answer is C: Preoperative and postoperative teaching for adrenalectomy. Pheochromocytoma often requires adrenalectomy as part of the treatment plan. Therefore, educating the client about what to expect before and after the surgery is crucial for optimal care and outcomes. Choices A, B, and D are incorrect. Choice A focuses on emotional well-being rather than the specific surgical intervention needed for pheochromocytoma. Choice B is unrelated as the primary treatment for pheochromocytoma is surgical rather than medication-based. Choice D, though related to managing hypertension, does not address the surgical aspect of treating pheochromocytoma.
4. A client who received multiple antihypertensive medications experiences syncope due to a drop in blood pressure to 70/40. What is the rationale for the nurse’s decision to hold the client’s scheduled antihypertensive medication?
- A. Increased urinary clearance of the multiple medications has led to diuresis and lowered the blood pressure.
- B. The antagonistic interaction among the various blood pressure medications has reduced their effectiveness.
- C. The additive effect of multiple medications has caused the blood pressure to drop too low.
- D. The synergistic effect of the multiple medications has resulted in drug toxicity and resulting hypotension.
Correct answer: C
Rationale: The correct answer is C. When a client experiences syncope due to a significant drop in blood pressure after receiving multiple antihypertensive medications, the additive effect of these medications can cause the blood pressure to drop excessively. This additive effect can lead to hypotension, which is why the nurse decided to hold the client's scheduled antihypertensive medication. Choices A, B, and D provide incorrect rationales. Choice A mentions diuresis, which is not directly related to the drop in blood pressure due to additive medication effects. Choice B refers to an antagonistic interaction reducing effectiveness, which is not applicable in this scenario. Choice D talks about a synergistic effect leading to drug toxicity, which is not the cause of the sudden drop in blood pressure observed in the client.
5. The nurse assesses an older adult who is newly admitted to a long-term care facility. The client has dry, flaky skin and long thickened fingernails. The client has a medical history of a stroke which resulted in left-sided paralysis and dysphagia. In planning care for the client, which task should the nurse delegate to the unlicensed personnel (UAP)?
- A. Soak and file fingernails
- B. Offer fluids frequently
- C. Monitor skin elasticity
- D. Ambulate in the hallway
Correct answer: A
Rationale: Soaking and filing fingernails is a task that can be delegated to UAP. This task does not require specialized nursing skills and can be safely performed by unlicensed personnel. Offering fluids frequently, monitoring skin elasticity, and ambulating require more skilled assessments and interventions, which are responsibilities of the nurse. The client's dry, flaky skin and long thickened fingernails indicate the need for basic hygiene care, making it appropriate for delegation to unlicensed personnel.
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