RN Exam Practice
Pharmacological and Parenteral TherapiesQuestion 550 of 2368

A nurse teaches a client who is starting senna. Which statement is correct?

  1. It is best taken on a long-term basis to maintain daily regularity
  2. It cannot cause dehydration or electrolyte loss, even at high doses
  3. It works by making the stool harder and slowing down bowel movement
  4. It may discolor the urine and should be used short term at the lowest dose
Show answer

Correct answer: It may discolor the urine and should be used short term at the lowest dose

Senna can discolor urine and overuse may cause diarrhea and dehydration, so short-term use is advised.

Source: Nursing Pharmacology, 2nd edition (Open RN, Chippewa Valley Technical College, 2023), Gastrointestinal System: Laxative Medication Classes. Licensed under CC BY 4.0.

Practice the topic "Pharmacological and Parenteral Therapies"

Questions last reviewed: 18 October 2026