Which of the following correctly describes the process of hearing?

Vibration of the eardrum is directly transmitted to the eighth cranial nerve, bypassing the inner ear structures.

Sound waves enter the ear canal and are converted to electrical impulses.

Vibration of the eardrum transmits through the bony ossicles to the perilymph in the inner ear, stimulating the eighth cranial nerve.

Sound is transmitted directly from the eardrum to the brain.

Answer and Explanation

The Correct Answer is C

Choice A rationale

Vibration of the eardrum is not directly transmitted to the eighth cranial nerve, bypassing the inner ear structures. The vibrations from the eardrum are first transmitted through the ossicles (tiny bones in the middle ear) to the cochlea in the inner ear.

Choice B rationale

Sound waves enter the ear canal, but they are not directly converted to electrical impulses. The sound waves cause the eardrum to vibrate, and these vibrations are transmitted through the ossicles to the cochlea, where they are converted into electrical signals that are sent to the brain via the eighth cranial nerve.

Choice C rationale

Vibration of the eardrum transmits through the bony ossicles to the perilymph in the inner ear, stimulating the eighth cranial nerve. This is the correct description of the process of hearing.

Choice D rationale

Sound is not transmitted directly from the eardrum to the brain. The sound-induced vibrations of the eardrum are transmitted through the ossicles to the cochlea, where they are converted into electrical signals that are sent to the brain via the eighth cranial nerve.

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Correct Answer is B

Explanation

Choice A rationale

Excessive thirst and urination are symptoms of hyperglycemia, not hypoglycemia. Hyperglycemia could occur if the TPN solution was infusing too quickly, but it would not be a result of the infusion pump not working.

Choice B rationale

Shakiness and diaphoresis are manifestations of hypoglycemia. When a sudden interruption in the infusion of TPN occurs, the patient is at risk for hypoglycemia.

Choice C rationale

Fever and chills are symptoms of infection, not a direct result of the TPN infusion stopping.

Choice D rationale

Hypertension and crackles in the lungs are signs of fluid overload, not hypoglycemia. These symptoms would not be expected if the TPN infusion stopped.

A. The presence of a grab bar in the bathroom. B. An electrical cord lying across a walkway. C. The patient has macular degeneration. D. There are throw rugs in the kitchen. E. The patient uses a cane to ambulate.

Correct Answer is ["B","C","D","E"]

Explanation

Choice A rationale

The presence of a grab bar in the bathroom is actually a safety measure that can help prevent falls. It provides support for the patient when they are getting up or moving around, reducing the risk of a fall.

Choice B rationale

An electrical cord lying across a walkway is a tripping hazard and would increase the patient’s risk of falling. It is important to keep walkways clear of clutter and potential obstacles to prevent falls.

Choice C rationale

Macular degeneration can affect the patient’s vision, making it difficult for them to see obstacles or changes in the walking surface. This can increase their risk of falling.

Choice D rationale

Throw rugs in the kitchen can easily slip or bunch up, creating a tripping hazard. They should be secured with non-slip backing or removed to reduce the risk of falls.

Choice E rationale

While a cane can provide support and improve balance, it also indicates that the patient has mobility issues, which increases their risk of falling. It is important that the patient uses the cane correctly and that it is the right height for them.

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Which of the following correctly describes the process of hearing?

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Naxlex Comprehensive Predictor Exams

A nurse finds that the infusion pump for a patient’s total parenteral nutrition (TPN) solution is not working. What condition should the nurse monitor the patient for?

Correct Answer is B

Explanation

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Correct Answer is ["B","C","D","E"]

Explanation

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