Nokea
Beta 2 adrenergic receptor agonists:
- A. Relieve bronchospasms
- B. Potentiates hypertensive
- C. Catecholamine inhibits the reception
- D. Have porasympathominetic action on bronchi
Correct Answer: A
Rationale: Beta-2 adrenergic agonists, like salbutamol, relieve bronchospasms by relaxing bronchial smooth muscle, making them key in asthma and COPD management.
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Which of the following is a stimulative mechanism of insulin secretion:
- A. Hyperglicemia and decrease of intracellular ATP
- B. Increase of intracellular ATP and opening of ATP-depended K+ channels
- C. Increase of intracellular ATP and closure of ATP-depended K+ channels
- D. Closure of potential depended Ca+2 channels
Correct Answer: C
Rationale: Insulin secretion is stimulated by increased ATP closing K+ channels, depolarizing beta cells and opening Ca2+ channels.
The Combination of amoxycillin + clavulanic acid is used because
- A. It broadens the spectrum of amoxycillin
- B. It decreases the side effect of amoxycillin
- C. It decreases the toxicity of clavulanic acid
- D. It increases the oral bio availability of amoxycillin
Correct Answer: A
Rationale: Clavulanic acid inhibits beta-lactamases, broadening amoxicillin's spectrum.
Mutations in receptor tyrosine kinases would most likely be associated with :
- A. Neurologic diseases
- B. Endocrine diseases
- C. Cancers
- D. Metabolic abnormalities
Correct Answer: C
Rationale: Receptor tyrosine kinases are often linked to uncontrolled cell growth when mutated, commonly associated with cancers.
What medication most likely caused patient's hypoglycaemia?
- A. Acarbose
- B. Exenatide
- C. Glyburide
- D. Metformin
Correct Answer: C
Rationale: Glyburide, a sulfonylurea, is most likely to cause hypoglycemia due to excessive insulin release.
The American Dietetic Association recommends pregnant women take a supplement including:
- A. 1,000 IU daily of vitamin D
- B. 2.4 mcg/day of vitamin B12
- C. 600 mcg/day of folic acid
- D. 8 mg/day of iron
Correct Answer: C
Rationale: 600 mcg/day of folic acid is recommended during pregnancy to prevent neural tube defects.