Nokea
A nurse is preparing to administer an IM dose of penicillin to a client who has a new prescription. The client states she took penicillin 3 years ago and developed a rash. Which of the following actions should the nurse take?
- A. Administer the prescribed dose.
- B. Withhold the medication.
- C. Ask the provider to change the prescription to an oral form.
- D. Administer an oral antihistamine at the same time
Correct Answer: B
Rationale: A history of rash suggests a possible allergy; withholding the medication and consulting the provider is safest.
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A nurse is preparing a teaching plan for a client who is prescribed an oral medication. As part of the plan, the nurse expects to describe the importance of absorption. The nurse would integrate knowledge of which of the following as a mechanism for absorption in the gastrointestinal tract? Select one that does not apply.
- A. Active transport
- B. Transposition
- C. Passive transport
- D. Pinocytosis
Correct Answer: B
Rationale: During absorption, the drug particles in the GI tract are moved into the body fluids via active transport, passive transport, and pinocytosis.
A 49-year-old woman with a history of hypertension is treated with spironolactone. She has good blood pressure control and in the last 6 months has shown an improvement in her hirsutism. What is the most likely explanation for these findings?
- A. Androgen receptor inhibition of the hair follicle
- B. Drug toxicity
- C. Hypoaldosteronism
- D. Testosterone levels are elevated
Correct Answer: A
Rationale: Spironolactone's anti-androgenic effects inhibit androgen receptors, reducing hirsutism, alongside its aldosterone antagonism for hypertension.
What concept is considered when generic drugs are substituted for brand name drugs?
- A. Bioavailability
- B. Critical concentration
- C. Distribution
- D. Half-life
Correct Answer: A
Rationale: Bioavailability is the portion of a dose of a drug that reaches the systemic circulation and is available to act on body cells. Binders used in a generic drug may not be the same as those used in the brand name drug. Therefore, the way the body breaks down and uses the drug may differ, which may eliminate a generic drug substitution. Critical concentration is the amount of a drug that is needed to cause a therapeutic effect and should not differ between generic and brand name medications. Distribution is the phase of pharmacokinetics, which involves the movement of a drug to the body's tissues and is the same in generic and brand name drugs. A drug's half-life is the time it takes for the amount of drug to decrease to half the peak level, which should not change when substituting a generic medication.
Rodrigo has been prescribed procainamide after a myocardial infarction. He is monitored for dyspnea, jugular venous distention, and peripheral edema because they may indicate:
- A. Widening of the area of infarction
- B. Onset of congestive heart failure
- C. An electrolyte imbalance involving potassium
- D. Renal dysfunction
Correct Answer: B
Rationale: These symptoms suggest heart failure, a potential procainamide complication.
Clonidine has several off-label uses, including:
- A. Alcohol and nicotine withdrawal
- B. Post-herpetic neuralgia
- C. Both 1 and 2
- D. Neither 1 nor 2
Correct Answer: C
Rationale: Clonidine is used off-label for both alcohol/nicotine withdrawal and post-herpetic neuralgia.