Nokea
The following drugs may precipitate angina pectoris EXCEPT:
- A. Amphetamine
- B. Hydralazine
- C. Isoproterenol
- D. Epinephrine
Correct Answer: D
Rationale: Propranolol, a beta-blocker, relieves angina, unlike the others which increase cardiac demand.
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A child with severe asthma is being treated oral prednisone. Which of the following adverse effects is of particular concern?
- A. Hypoglycemia
- B. Hirsutism
- C. Growth suppression
- D. Cushing syndrome
Correct Answer: C
Rationale: Growth suppression is a significant concern in children on long-term prednisone due to its impact on bone growth and development.
The nurse administers a prescribed medication that is supplied as an enteric-coated tablet. The patient asks the nurse about this form of tablet. When describing how this tablet is absorbed, which response by the nurse would be most accurate?
- A. The medication dissolves directly from the stomach into the body.'
- B. The drug breaks up into pieces as it moves through the stomach.'
- C. The medication bypasses the GI tract and goes quickly into the bloodstream.'
- D. The drug dissolves into fragments after it reaches your small intestine.'
Correct Answer: D
Rationale: Enteric-coated tablets disintegrate or fragment after reaching the alkaline medium of the small intestine. Tablets and capsules break up into small particles and dissolve into body fluids in the gastrointestinal tract. Liquids and parenteral drugs are quickly absorbed into the body system.
A nurse is teaching a client about preventing Otitis Externa. Which of the following instructions should the nurse include?
- A. Clean the ear with a cotton-tipped swab daily
- B. Place earplugs in the ears when sleeping at night.
- C. Use a cool water irrigation solution to remove earwax.
- D. Tip the head to the side to remove water from the ears after showering
Correct Answer: D
Rationale: Tipping the head removes water, preventing moisture that promotes otitis externa.
What is the correct statement concerning noncompetitive antagonism:
- A. The potency of the drug does not change
- B. the number of receptors able to bind the agonist is affected
- C. by increasing the conc. of the agonist, we cannot overcome the problem
- D. non of the above is wrong
Correct Answer: D
Rationale: All statements are correct: noncompetitive antagonism reduces efficacy (not potency), affects receptor availability, and cannot be overcome by increasing agonist concentration.
The processes involved in dynamic equilibrium are key elements in the nurse's ability to determine what?
- A. Dosage scheduling
- B. Amount of solution for mixing parenteral drugs
- C. Timing of other drugs the patient is taking
- D. How long the patient has to take the drug
Correct Answer: A
Rationale: These processes are key elements in determining the amount of drug (dose) and the frequency of dose repetition (scheduling) required to achieve the critical concentration for the desired length of time. The processes in dynamic equilibrium are not key elements in determining the amount of diluents for intramuscular (IM) drugs; they do not aid in the timing of the other drugs the patient is taking or how long the patient has to take the drug.