Nokea
Angina is caused by:
- A. Blocking beta1 receptors with a constant binding of noradrenaline
- B. Activating beta2 receptors
- C. Beta1 receptors are not active anymore
- D. Extreme binding of noradrenaline due to up regulation
Correct Answer: D
Rationale: Angina results from myocardial ischemia, often due to excessive demand or reduced supply, which can be exacerbated by upregulated noradrenaline binding increasing heart workload.
You may also like to solve these questions
A patient taking an oral diuretic for about six (6) months presents with elevated fasting and post prandial blood glucose levels. You suspect the glycemic problems are diuretic induced. What is the most likely cause?
- A. Acetazolamide
- B. Amiloride
- C. Chlorothiazide
- D. Spironolactone
Correct Answer: C
Rationale: Thiazides like chlorothiazide impair glucose tolerance by reducing insulin sensitivity.
Pharmacoeconomics is:
- A. The study of the part of the U.S. economy
- B. The study of the impact of prescription drug costs on the overall economy
- C. The analysis of the costs and consequences of any health-care-related treatment or service
- D. The analysis of the clinical efficacy of the drug
Correct Answer: C
Rationale: Pharmacoeconomics evaluates costs and outcomes of health-care interventions.
Education of patients who are taking warfarin includes discussing their diet. Instructions include:
- A. Avoiding all vitamin K-containing foods
- B. Avoiding high-vitamin K-containing foods
- C. Increasing intake of iron-containing foods
- D. Making sure they eat 35 grams of fiber daily
Correct Answer: B
Rationale: High vitamin K foods antagonize warfarin; total avoidance is unnecessary, and iron or fiber aren't relevant.
A nurse is providing discharge teaching to a client who has a new prescription for Fluoxetine for PTSD. Which of the following statements should the nurse include in the teaching?
- A. You may have a decreased desire for intimacy while taking this medication.
- B. You should take this medication at bedtime to help promote sleep.
- C. You will have fewer urinary adverse effects if you urinate just before taking this medication.
- D. You'll need to wear sunglasses when outdoors due to the light sensitivity caused by this medication.
Correct Answer: A
Rationale: Fluoxetine can decrease libido , a common SSRI side effect to inform clients about.
Which of the following drugs do not cross the placenta
- A. Dilantin
- B. Diazepam
- C. Acinocoumarin
- D. Heparin
Correct Answer: D
Rationale: Heparin does not cross the placenta due to its large size.