A patient has active tuberculosis. Which of the following is most important for the nurse to implement?

Use an N95 respirator when entering the room

Place the patient in a room with positive room airflow.

Open the windows in the room for extra ventilation.

Use a surgical mask when entering the room

Answer and Explanation

The Correct Answer is A

A. Use an N95 respirator when entering the room: An N95 respirator provides a tight seal and filters airborne particles, which is essential for preventing transmission of Mycobacterium tuberculosis. Because TB spreads through airborne droplets, wearing an N95 mask is the most important protection for healthcare workers.

B. Place the patient in a room with positive room airflow: Positive pressure airflow pushes air out of the room, which risks contaminating surrounding areas. TB patients must be placed in negative pressure rooms to contain and filter airborne pathogens safely within the room.

C. Open the windows in the room for extra ventilation: While increasing ventilation may reduce airborne concentration of pathogens in certain settings, it is not a recommended infection control method in clinical environments.

D. Use a surgical mask when entering the room: Surgical masks do not effectively filter small airborne particles like TB bacilli. They are intended for droplet precautions, not airborne precautions, and therefore offer inadequate protection for staff entering a TB patient's room.

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Correct Answer is C

Explanation

A. Barrel chest and polycythemia: These findings are more characteristic of chronic obstructive pulmonary disease, especially emphysema. They reflect long-term adaptations to hypoxia and air trapping, not the acute onset seen in pneumothorax.

B. Bronchovesicular lung sounds and bradypnea: Bronchovesicular sounds are normal in some lung areas, and bradypnea is not a common feature of pneumothorax. Pneumothorax often presents with decreased or absent breath sounds on the affected side and increased respiratory rate due to hypoxia.

C. Unequal lung expansion and dyspnea: Unequal chest expansion occurs because the collapsed lung on the affected side does not inflate properly. Dyspnea results from impaired gas exchange, making this the most accurate sign combination of pneumothorax.

D. Frothy bloody sputum and consolidation: These findings suggest pulmonary edema or pneumonia rather than pneumothorax. Frothy sputum is often seen in left-sided heart failure, and lung consolidation is not a feature of air in the pleural space.

Correct Answer is ["0.5"]

Explanation

Calculation:

Desired dose = 5,000 units.

Available concentration = 10,000 units/mL.

Calculate the volume to administer.

Volume (mL) = Desired dose (units) / Available concentration (units/mL)

= 5,000 units / 10,000 units/mL

= 0.5 mL..

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A patient has active tuberculosis. Which of the following is most important for the nurse to implement?

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Naxlex Comprehensive Predictor Exams

The client is admitted to the emergency department with chest trauma. What signs/symptoms indicate to the nurse the diagnosis of pneumothorax?

Correct Answer is C

Explanation

The healthcare provider orders 5,000 units of heparin subcutaneously every 8 hours. The vial label reads heparin sodium 10,000 units/mL. How many milliliters should the nurse administer per dose? (DO NOT ROUND. LABEL CORRECTLY TO RECEIVE CREDIT)

Correct Answer is ["0.5"]

Explanation

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