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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

When COâ‚‚ concentration in blood increased breathing becomes ____________

A. shallower and deeper
B. slow and deep
C. faster and deeper
D. no effect on breathing

Expert Explanatory Rationale

Correct Answer: faster and deeper

Question 2 of 5

The charge nurse on a medical unit is preparing to admit several "clients" who have possible pandemic flu during a preparedness drill. What action by the nurse is best?

A. Admit the "clients" on Contact Precautions.
B. Inquire as to recent travel outside the United States.
C. Do not allow pregnant caregivers to care for these "clients."
D. Place the "clients" on enhanced Droplet Precautions.

Expert Explanatory Rationale

Correct Answer: Inquire as to recent travel outside the United States.

Question 3 of 5

The nurse is caring for a patient who has returned to the unit following a bronchoscopy. The patient is asking for something to drink. Which criterion will determine when the nurse should allow the patient to drink fluids?

A. Presence of a cough and gag reflex
B. Absence of nausea
C. Ability to demonstrate deep inspiration
D. Oxygen saturation of ≥92%

Expert Explanatory Rationale

Correct Answer: Presence of a cough and gag reflex

Question 4 of 5

A client is receiving oxygen at 4 L per nasal cannula. What comfort measure may the nurse delegate to assistive personnel (AP)?

A. Apply water-soluble ointment to nares and lips.
B. Periodically turn the oxygen down or off.
C. Replaces the oxygen tubing with a different type.
D. Turn the client every 2 hours or as needed.

Expert Explanatory Rationale

Correct Answer: Apply water-soluble ointment to nares and lips.

Question 5 of 5

In human beings, partial pressure of carbon dioxide in the inspired and expired air is respectively

A. 0.3 and 40 mm Hg
B. 0.3 and 32 mm Hg
C. 40 and 46 mm Hg
D. 40 and 0.3 mm Hg

Expert Explanatory Rationale

Correct Answer: 0.3 and 32 mm Hg

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