Why can a medication given by the oral route have a slower or less predictable effect than one given intravenously?
Correct answer: A. It must pass through the gastrointestinal tract and may undergo first-pass metabolism
- A. It must pass through the gastrointestinal tract and may undergo first-pass metabolism
- B. It is absorbed directly into the pulmonary circulation before reaching the liver
- C. It always remains inside the stomach until the full dose is absorbed
- D. It enters the bloodstream through the skin before reaching the liver
Explanation
Oral medication must dissolve and be absorbed through the gastrointestinal tract, and some drugs are metabolised in the liver before reaching systemic circulation. Intravenous medication enters the circulation directly and has a rapid, predictable effect.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Routes and Safe Medication Administration
Safe medication administration covers oral, sublingual, buccal, topical, inhaled, enteral, intradermal, subcutaneous and intramuscular routes, including their absorption patterns and technique. It also includes medication rights, patient identification, documentation, allergy checks, injection site selection and prevention of errors, with route selection distinguished from dosage calculation.
Practise Routes and Safe Medication Administration
50 free Routes and Safe Medication Administration MCQs from Nursing Pharmacology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Nursing Pharmacology questions like this
Nursing Pharmacology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Routes and Safe Medication Administration questions
Which statement best describes the buccal route of medication administration?
The medication order says, “Give orally,” but the patient is unconscious and has no safe swallowing reflex. What should the nurse do?
A patient reports a previous severe reaction to penicillin before receiving a newly prescribed antibiotic. What is the nurse’s priority action?
A patient is prescribed a transdermal medication patch. Which action should the nurse take before applying the new patch?
A patient uses an inhaled corticosteroid. Which instruction helps prevent a common local adverse effect?
The nurse is preparing to administer a subcutaneous heparin injection. Which action is appropriate?