A nurse is caring for a client who has active pulmonary tuberculosis (TB) and is to be started on intravenous

rifampin therapy. The nurse should instruct the client that this medication can cause which of the following adverse

effects?

A. Constipation

Rationale: Rifampin does not cause constipation. More common gastrointestinal effects are diarrhea and

nausea.

B. Black colored stools

Rationale:It is most commonly iron supplements that cause stools to turn black, not rifampin.

C. Staining of teeth

Rationale: Teeth may be stained from taking liquid iron preparations, not from taking rifampin.

D. Body secretions turning a red-orange color

Rationale: Rifampin is used in combination with other medicines to treat TB. Rifampin will cause the urine,

stool, saliva, sputum, sweat, and tears to turn reddish-orange to reddish-brown.

2. A nurse is caring for a client who has congestive heart failure and is taking digoxin daily. The client refused

breakfast and is complaining of nausea and weakness. Which of the following actions should the nurse take first?

A. Check the client's vital signs.

Rationale:It is possible that the client's nausea is secondary to digoxin toxicity. By obtaining vital signs, the

nurse can assess for bradycardia, which is a symptom of digoxin toxicity. The nurse should

withhold the medication and call the provider if the client's heart rate is less than 60 bpm.