A nurse is checking a client's ventilator settings. The nurse should understand that positive end- expiratory pressure has which of the following purposes?

To deliver a set tidal volume

To provide positive airway pressure during inspiration

To control the rate of ventilations

To prevent alveolar collapse

Answer and Explanation

The Correct Answer is D

Positive end-expiratory pressure (PEEP) is a mode of mechanical ventilation that maintains a positive pressure in the airways at the end of expiration, preventing alveolar collapse and improving oxygenation. PEEP does not affect tidal volume, inspiratory pressure, or ventilation rate, which are determined by other ventilator settings.

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Correct Answer is D

Explanation

The nurse should plan to confirm the correct position of the line by obtaining a blood sample, as this is one of the methods to verify placement and patency of a central venous catheter. The nurse should also instruct the client to perform a Valsalva maneuver (bearing down) as the catheter is inserted, place the head of the client's bed higher than 30 degrees, and cleanse the site with an antiseptic solution such as chlorhexidine.

A. "Are your immunizations current?" B. Do you have any household pets, such as a cat?" C. "Was anyone in your family recently exposed to a viral disease?" D. "Have you been out of the country in the past 30 days?"

Correct Answer is B

Explanation

Toxoplasmosis is a parasitic infection caused by Toxoplasma gondii, which can be transmitted by contact with cat feces or eating undercooked meat containing cysts. The nurse should ask about the client's exposure to cats or cat litter, as this is a risk factor for acquiring toxoplasmosis, especially in immunocompromised individuals.

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A nurse is checking a client's ventilator settings. The nurse should understand that positive end- expiratory pressure has which of the following purposes?

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Naxlex Comprehensive Predictor Exams

A nurse is preparing to assist with the insertion of a non-tunneled central venous catheter for a client who is malnourished. Which of the following actions should the nurse plan to take?

Correct Answer is D

Explanation

A nurse is collecting data from a client who has toxoplasmosis and is HIV positive. Which of the following questions should the nurse ask to gather data about toxoplasmosis?

Correct Answer is B

Explanation

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A nurse is checking a client's ventilator settings. The nurse should understand that positive end- expiratory pressure has which of the following purposes?

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