Nokea
All the following induce hepatic enzymes except
- A. Rifampicin
- B. Phenytoin
- C. Barbiturates
- D. Tolbutamide
Correct Answer: D
Rationale: Tolbutamide does not significantly induce enzymes; others do.
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The nurse is caring for a client who has a nasogastric tube in place. The client is to receive an oral medication through the tube. Which action by the nurse would be most appropriate? (Select one that does not apply.)
- A. Not diluting liquids prior to administration
- B. Checking the tube for placement
- C. Dissolving crushed tablets in water prior to administration
- D. Flushing the tube with water after drugs are administered
Correct Answer: A
Rationale: Before administration of an oral drug through an NG tube or gastrostomy tube, the nurse should check the tube for placement, dilute and flush liquid drugs through the tube, crush tablets and dissolve them in water before administering them through the tube, and flush the tube with water after the drugs are placed in the tube to clear the tubing completely.
A nurse in the post-anesthesia recovery unit is caring for a client who received a nondepolarizing neuromuscular blocking agent and has muscle weakness. The nurse should anticipate a prescription for which of the following medications?
- A. Neostigmine
- B. Naloxone
- C. Dantrolene
- D. Vecuronium
Correct Answer: A
Rationale: Neostigmine reverses nondepolarizing neuromuscular blockers by increasing acetylcholine.
When prescribing an opioid analgesic such as acetaminophen and codeine (Tylenol #3), instructions to the patient should include:
- A. The medication may cause sedation and they should not drive.
- B. Constipation is a common side effect and they should increase fluids and fiber.
- C. Patients should not take any other acetaminophen-containing medications at the same time.
- D. All of the above
Correct Answer: D
Rationale: All are critical: sedation, constipation, and acetaminophen overdose risks.
Several processes enable a drug to reach a specific concentration in the body. Together they are called dynamic equilibrium. What are these processes? (Select one that does not apply.)
- A. Distribution to the active site
- B. Biotransformation
- C. Absorption from the muscle
- D. Excretion
Correct Answer: C
Rationale: The actual concentration that a drug reaches in the body results from a dynamic equilibrium involving several processes: Absorption from the site of entry (can be from the muscle, the gastrointestinal (GI) tract if taken orally, of the subcutaneous tissue if given by that route); Distribution to the active site; biotransformation (metabolism) in the liver; excretion from the body. Interaction with other drugs is not part of the dynamic equilibrium.
Hepatitis B immune globulin is administered to provide passive immunity to:
- A. Infants born to HBsAg-positive mothers
- B. Household contacts of hepatitis-B virus infected people
- C. Persons exposed to blood containing hepatitis B virus
- D. All of the above
Correct Answer: D
Rationale: Hepatitis B immune globulin provides passive immunity in all listed exposure scenarios .