Nokea
The nurse is assessing a client with diabetes who reports several hypoglycemic episodes during the past 3 weeks. What assessment question best addresses a potential causative factor?
- A. Do you ever take St. John's wort?'
- B. Have you used any recreational drugs in the past few weeks?'
Correct Answer: A
Rationale: St. John's wort can affect glucose metabolism and drug interactions, potentially causing hypoglycemia in diabetics.
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Phenytoin decreases folic acid absorption by:
- A. Altering the pH of the stomach
- B. Increasing gastric emptying time
- C. Inhibiting intestinal enzymes required for folic acid absorption
- D. Chelation of the folic acid into inactive ingredients
Correct Answer: C
Rationale: Phenytoin inhibits intestinal conjugase enzymes, reducing folic acid absorption.
Irreversible interaction of an antagonist with a receptor is due to:
- A. Ionic bonds
- B. Hydrogen bonds
- C. Covalent bonds
- D. All of the above
Correct Answer: C
Rationale: Irreversible antagonism typically involves covalent bonding, making it permanent.
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.
Digoxin levels need to be monitored closely when the following medication is started:
- A. Loratadine
- B. Diphenhydramine
- C. Ipratropium
- D. Albuterol
Correct Answer: D
Rationale: Albuterol , a beta-agonist, can increase digoxin levels by enhancing its effects, requiring close monitoring; antihistamines and ipratropium have minimal impact.
In Ayurvedic medicine, treatment is based on the 'tistidever' dosha, which is referred to as the person's:
- A. Vata
- B. Pitta
- C. Kapha
- D. Prakriti
Correct Answer: D
Rationale: Prakriti is the individual's constitution in Ayurveda, guiding treatment based on dosha balance.