Nokea
Scopolamine can be used to prevent the nausea and vomiting associated with motion sickness. The patient is taught to:
- A. Apply the transdermal disk at least 4 hours before the antiemetic effect is desired.
- B. Swallow the tablet 1 hour before traveling where motion sickness is possible.
- C. Place the tablet under the tongue and allow it to dissolve.
- D. Change the transdermal disk daily for maximal effect.
Correct Answer: A
Rationale: Scopolamine patches require 4 hours for onset, making preemptive application key.
You may also like to solve these questions
A pharmaceutical lab states that a drug causes negative side effects in 3 of every 100 patients. To confirm this affirmation, another laboratory chooses 5 people at random who have consumed the drug. What is the probability that at least two experience side effects?
- A. 0.8687
- B. 0.1313
- C. 0.00847
- D. 0.0003
Correct Answer: C
Rationale: The probability of at least two experiencing side effects is P(X≥2) = 1 - [P(X=0) + P(X=1)]. Using binomial calculations: P(X=0) = 0.8687, P(X=1) = (5 choose 1) * 0.03 * 0.97^4 = 0.1342, so P(X≥2) = 1 - (0.8687 + 0.1342) = 0.00847, matching the document.
Before administering a prescription medication, what information does the nurse find on the drug label? (Select all that apply.)
- A. Brand name
- B. Generic name
- C. Drug concentration
- D. Adverse effects
Correct Answer: D
Rationale: Prescription drug labels will contain the brand name, generic name, drug concentration, and expiration date. Adverse effects will not be listed on drug labels.
Methanol causes blindness due to its
- A. Hypersensitivity reactions
- B. Conjugated products
- C. Idiosyncratic reaction
- D. Oxidative products
Correct Answer: D
Rationale: Methanol's metabolite, formic acid (oxidative product), damages the optic nerve, causing blindness.
Which of the following drugs are mucolytics?
- A. Diphenhydramine
- B. Carbocisteine and mecysteine
- C. Methadone or diamorphine
- D. Atropine
Correct Answer: B
Rationale: Carbocisteine and mecysteine break mucus disulfide bonds, acting as mucolytics.
Which of the following does albumin have the strongest affinity for?
- A. Anionic drugs
- B. Hydrophilic drugs
- C. Hydrophobic drugs
- D. A and C
Correct Answer: C
Rationale: Albumin has the strongest affinity for hydrophobic drugs , which bind to its hydrophobic pockets, unlike hydrophilic drugs; anionic drugs may bind but less preferentially.