Which of the following is natural mineralcorticoid:
- A. Methylprednisolone
- B. Betamethasone
- C. Triamcinolone
- D. Aldosterone
Correct Answer: D
Rationale: Aldosterone is the natural mineralocorticoid regulating sodium and potassium balance.
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An example of a first-dose reaction that may occur includes:
- A. Orthostatic hypotension that does not occur with repeated doses
- B. Purple glove syndrome with phenytoin use
- C. Hemolytic anemia from ceftriaxone use
- D. Contact dermatitis from neomycin use
Correct Answer: C
Rationale: Hemolytic anemia from ceftriaxone can occur after the first dose as a Type II reaction, unlike orthostatic hypotension (A, adaptive) or others (B, D, later onset).
A patient who is taking isoniazid (INH) as part of a two-drug tuberculosis treatment regimen reports tingling of the fingers and toes. The nurse will recommend discussing which treatment with the provider?
- A. Adding pyrazinamide
- B. Changing to ethambutol
- C. Increasing oral fluid intake
- D. Taking pyridoxine (B6)
Correct Answer: D
Rationale: Pyridoxine prevents INH-induced neuropathy (tingling); changing drugs or fluids doesn't address this. Peripheral neuropathy is an adverse reaction to INH, so pyridoxine is usually given to prevent this.
An important concept taught by the nurse when providing medication teaching is the need to provide a complete list of medications taken to health care providers to avoid what?
- A. Spending large amounts of money on medications
- B. Allergic reactions to medications
- C. Drug-drug interactions
- D. Critical concentrations of medications in the body
Correct Answer: C
Rationale: It is important that all health care providers have a complete list of the patients medications to avoid drug-drug interactions caused by one provider ordering a medication, unaware of another medication the patient is taking that could interact with the new prescription. Using the same pharmacist for all prescriptions will also help to prevent this from happening. Informing the provider of all medications taken will not reduce costs of medications, which is best accomplished by requesting generic medications. Allergies should be disclosed to all health care providers as well, but this is not why it is important to provide a complete list of medications taken. Critical concentrations are desirable because that is the amount of drug needed to cause a therapeutic effect, or, in other words, to have the effect the drug is prescribed for.
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 average number of patients that the laboratory should expect to experience side effects if they choose 100 patients at random?
- A. 1
- B. 2
- C. 3
- D. 4
Correct Answer: C
Rationale: The expected value (mean) of a binomial distribution is n * p. Here, n=100 and p=0.03, so U = 100 * 0.03 = 3, as calculated in the document.
A number of barriers and concerns exist before the goals of a safe and efficient information technology (IT) system can be realized. Which of the following is NOT a barrier to adoption and use of IT in prescribing drugs?
- A. Cost of initial setup
- B. Access to highly skilled experts
- C. Compatibility between systems
- D. Patient confidentiality risks
Correct Answer: B
Rationale: Access to skilled experts facilitates, rather than hinders, IT adoption.