What is the most likely mechanism for hip fracture in patients with glucocorticoid longterm treatment?
- A. Increased intestinal calcium absorption
- B. Increased sex hormone synthesis
- C. Inhibition of bone formation
- D. Osteoarthritis
Correct Answer: C
Rationale: Glucocorticoids inhibit bone formation by suppressing osteoblast activity, increasing osteoporosis and fracture risk.
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The following drug is used for diabetic coma:
- A. Glibenclamid
- B. Long acting insulin preparations
- C. The rapid and intermediate acting insulin preparations
- D. Metformin
Correct Answer: C
Rationale: Rapid and intermediate-acting insulins are used to quickly correct hyperglycemia in diabetic coma.
A nurse is reviewing the health record of a client who asks about using Propranolol to treat hypertension. The nurse should recognize which of the following conditions is a contraindication for taking propranolol?
- A. Asthma
- B. Glaucoma
- C. Hypertension
- D. Tachycardia
Correct Answer: A
Rationale: Propranolol is contraindicated in asthma due to risk of bronchoconstriction.
Precautions that should be taken when prescribing controlled substances include:
- A. Faxing the prescription for a Schedule II drug directly to the pharmacy
- B. Using tamper-proof paper for all prescriptions written for controlled drugs
- C. Keeping any pre-signed prescription pads in a locked drawer in the clinic
- D. Using only numbers to indicate the amount of drug to be prescribed
Correct Answer: B
Rationale: Tamper-proof paper prevents fraud, a key precaution; faxing Schedule II has restrictions, and locking pads or numbers-only are less specific.
Cruciferous vegetables may alter drug pharmacokinetics by:
- A. Enhancing absorption of weakly acidic drugs
- B. Altering CYP 3A4 activity, leading to elevated levels of drugs, such as the statins
- C. Inducing CYP 1A2, possibly leading to therapeutic failure of drugs metabolized by CYP 1A2
- D. Decreasing first-pass metabolism of drugs
Correct Answer: C
Rationale: Cruciferous vegetables (e.g., broccoli) induce CYP1A2, accelerating metabolism of drugs like theophylline, potentially reducing efficacy.
When prescribing Adderall (amphetamine and dextroamphetamine) to adults with ADHD the nurse practitioner will need to monitor:
- A. Blood pressure
- B. Blood glucose levels
- C. Urine ketone levels
- D. Liver function
Correct Answer: A
Rationale: Adderall increases blood pressure, requiring monitoring.