identify the placement of the stapes footplate into the bony labyrinth
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Nursing Elites

HESI LPN

CAT Exam Practice Test

1. Identify the placement of the stapes footplate into the bony labyrinth.

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. A male client with schizophrenia tells the nurse that the hospital has installed cameras that watch him and listening devices that record what everyone says. Which nursing problem should the nurse document for this client?

Correct answer: D

Rationale: The correct answer is D: Impaired environmental interpretation related to paranoid delusions. The client's belief about cameras watching and recording him is a manifestation of paranoid delusions, indicating a misinterpretation of the environment. Choice A is incorrect because thought broadcasting is not directly related to the client's belief about surveillance equipment. Choice B is incorrect as self-esteem disturbance is not the primary issue presented. Choice C is also incorrect as the client is not experiencing auditory hallucinations but rather paranoid delusions about surveillance.

3. When should the nurse conduct an Allen’s test?

Correct answer: C

Rationale: The correct time to conduct an Allen’s test is just before arterial blood gases are drawn peripherally. This test is performed to assess the adequacy of collateral circulation in the hand before obtaining arterial blood gases. Choice A is incorrect because an Allen’s test is not specifically done when obtaining pulmonary artery pressures. Choice B is incorrect because an Allen’s test is not used to assess deep vein thrombosis. Choice D is incorrect because an Allen’s test is not done specifically before attempting a cardiac output calculation.

4. The healthcare provider believes that a client who frequently requests pain medication may have a substance abuse problem. Which intervention reflects the healthcare provider's value of client autonomy over veracity?

Correct answer: A

Rationale: Administering the prescribed analgesic when requested is the most appropriate intervention that reflects the healthcare provider's value of client autonomy over veracity. This action respects the client's right to manage their pain and avoids deception. Referring the client to a substance abuse program (Choice B) assumes a diagnosis without evidence and does not respect the client's autonomy. Collaborating to provide a placebo (Choice C) would involve deception, which goes against the value of veracity. Documenting the frequency of medication requests (Choice D) is important for the client's care but does not directly address the issue of respecting client autonomy over veracity.

5. An adult male with a 6 cm thoracic aneurysm is being prepared for surgery. The nurse reports to the healthcare provider that the client’s blood pressure is 220/112 mmHg, so an antihypertensive agent is added to the client’s IV infusion. Which finding warrants immediate intervention by the nurse?

Correct answer: A

Rationale: A tearing, sharp pain between the shoulder blades may indicate aortic dissection, a serious complication requiring immediate intervention. This symptom is highly concerning in a patient with a thoracic aneurysm. Choice B is not as urgent as the pain symptom described in choice A. Choice C could indicate hematuria but is not as critical as the potential aortic dissection in choice A. Choice D, sinus tachycardia with PVCs, may be related to the patient's condition but is not as indicative of an immediate life-threatening situation as the tearing, sharp pain indicative of aortic dissection.

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