DHA Nursing Pharmacology & Drug Administration

Question 1

A nurse is preparing to administer morphine 4 mg IV. The vial contains 10 mg/mL. How many mL should be drawn up?

Accepted Answer

0.4 mL

Answer

Using the formula: Dose required ÷ Concentration = 4 mg ÷ 10 mg/mL = 0.4 mL of the morphine solution.

Question 2

Which antidote is used to reverse opioid-induced respiratory depression?

Accepted Answer

Naloxone (Narcan)

Answer

Naloxone is a competitive opioid receptor antagonist that rapidly reverses opioid-induced respiratory depression, sedation, and analgesia.

Question 3

Which route of drug administration has the fastest onset of action?

Accepted Answer

Intravenous (IV)

Answer

Intravenous administration delivers drug directly into the bloodstream, bypassing absorption barriers and providing the fastest onset of therapeutic effect.

Question 4

A patient is prescribed warfarin. Which laboratory test is used to monitor therapeutic levels?

Accepted Answer

Prothrombin time / INR (PT/INR)

Answer

Warfarin's anticoagulant effect is monitored using PT/INR, which measures the extrinsic clotting pathway that warfarin inhibits.

Question 5

Which nursing action is most important BEFORE administering any new medication to a patient?

Accepted Answer

Check for allergies and verify the five/six rights

Answer

Verifying allergies and applying the five/six rights of medication administration are the fundamental safety steps that prevent adverse drug reactions and medication errors.

DHA Nursing Practice Test

DHA Nursing Practice Test

DHA Nursing Pharmacology & Drug Administration