Nokea
AH of the following do not cross the blood brain barrier except
- A. Pyridostigmine
- B. Neostigmine
- C. Physostigmine
- D. Ambenonium
Correct Answer: C
Rationale: Physostigmine, a tertiary amine, crosses the blood-brain barrier; others (quaternary amines) do not.
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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.
In today's health care environment there is often more contact between the patient and the nurse than between the patient and the physician. How does this increased patient contact impact drug therapy?
- A. Choosing the best medication to treat the patient's condition
- B. Assessing the patient's preferred communication strategies
- C. Assessing the therapeutic success of the drug therapy
- D. Reducing dosage quickly when adverse effects arise
Correct Answer: C
Rationale: More contact allows nurses to assess therapy success through observation and patient feedback.
A primary health care provider orders a transdermal drug. When administering this drug, which action by the nurse would be most appropriate?
- A. Apply next dose to a new site.
- B. Check the infusion rate.
- C. Inject only the inner part of the forearm.
- D. Give small volumes of doses.
Correct Answer: A
Rationale: An important nursing intervention when administrating drugs through the transdermal route is to apply the next dose to a new site. It is important to check the infusion rate every 15 to 30 minutes in patients using infusion controllers or infusion pumps. When using the intradermal route, the inner part of the forearm should be used as the injection site and small volumes of doses should be administered.
NSAIDs increase the risk of CNS adverse effects when taken with which group of antibiotics?
- A. Macrolides
- B. Penicillins
- C. Aminoglycosides
- D. Quinolones
Correct Answer: D
Rationale: Quinolones (e.g., ciprofloxacin) with NSAIDs can increase CNS effects like seizures due to GABA inhibition.
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.