Nokea
Corticosteroids are acting on:
- A. Ion channels
- B. Thirosinkinase
- C. G-proteins
- D. genome and cases gene transcription
Correct Answer: D
Rationale: Corticosteroids act on the genome, binding to receptors that regulate gene transcription.
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Influenza vaccine may be administered annually to:
- A. Patients with an egg allergy
- B. Pregnant patients
- C. Patients age 6 weeks or older
- D. Patients with acute febrile illness
Correct Answer: B
Rationale: Influenza vaccine is safe in pregnancy; egg allergy requires caution, 6 weeks is too young, and fever delays it.
What would the nurse provide when preparing a patient for discharge and home medication self-administration?
- A. Personal contact information to use if the patient has questions
- B. Thorough medication teaching about drugs and the drug regimen
- C. Over-the-counter medications to use to treat potential adverse effects
- D. A sample size package of medication to take home until prescription is filled
Correct Answer: B
Rationale: The nurse is responsible for providing thorough medication teaching about drugs and the drug regimen to ensure the patient knows how to take the medication and when to notify the provider. The nurse never provides personal contact information to a patient. If adverse effects arise, the patient is taught to call the health care provider and should not self-medicate with over-the-counter drugs, which could mask serious symptoms. The nurse never dispenses medication because it must be properly labeled for home use; this is done by the pharmacy.
symptomatic and metabolic improvement. Until that time, which of the following might be administered adjunctively to suppress glucocorticoid synthesis?
- A. Cimetidine
- B. Cortisol (massive doses)
- C. Fludrocortisone
- D. Ketoconazole
Correct Answer: D
Rationale: Ketoconazole inhibits glucocorticoid synthesis by blocking adrenal steroidogenesis, useful in Cushing's syndrome management.
A pharmacology student asks the instructor what an accurate description of a drug agonist is. What is the instructor's best response?
- A. A drug that reacts with a receptor site on a cell preventing a reaction with another chemical on a different receptor site
- B. A drug that interferes with the enzyme systems that act as catalyst for different chemical reactions
- C. A drug that interacts directly with receptor sites to cause the same activity that a natural chemical would cause at that site
- D. A drug that reacts with receptor sites to block normal stimulation, producing no effect
Correct Answer: C
Rationale: Agonists are drugs that produce effects similar to those produced by naturally occurring neurotransmitters, hormones, or other substances found in the body. Noncompetitive antagonists are drugs that react with some receptor sites preventing the reaction of another chemical with a different receptor site. Drug-enzyme interactions interfere with the enzyme systems that stimulate various chemical reactions.
Isotonic normal saline (0.9%) solution is LEAST indicated in which one of the following conditions?
- A. Vomiting
- B. Hypercalcemia
- C. Body wide sodium depletion (e.g. DKA)
- D. Volume overload (e.g. liver disease)
Correct Answer: D
Rationale: Normal saline worsens volume overload in conditions like liver disease due to sodium retention.