A. Increases cAMP
B. Direct Vasodilator
C. Calcium channel blocker
D. Block the sympathetic flow at hypothalamus
Related Mcqs:
- Mechanism of action of nifidipine is_____________?
A. It has a prominent smooth muscle relaxant action causes arteolar dilation leading to fall in blood pressure
B. Nifidipine depresses the SA node thus decreasing mycocoardial excitability
C. Mainly depression of A-V conduction
D. Decreased cardiac output thus decreasing load on myocardium - Mechanism of action of chlortetracycline_____________?
A. Interfere with metabolism
B. Inhibition of protein synthesis
C. Inhibition of cell wall formation
D. Interfere with DNA function - Mechanism of action of quinolones is______________?
A. Inhibits DNA gyrase
B. Inhibits Bacterial protein synthesis
C. Inhibits bacterial cell wall synthesis
D. Inhibits intake of folic acid - Mechanism of action of beta-lactam antibiotics would be______________?
A. Inhibition of bacterial protein synthesis by binding to subunit of bacterial ribosomes
B. Inhibition of cell wall peptidoglycan synthesis by competitive inhibition of transpetidases
C. Reduced drug causes strand breaks in DNA
D. Inhibition of DNA synthesis by inhibiting DNA-Dependent RNA polymerase - The mechanism of action of chloramphenicol is inhibition of synthesis of_____________?
A. Cell wall
B. Cell membrane
C. Protein
D. DNA - The viral action is differentiated from bacterial action by_________________?
A. Interferon production
B. Toxin production
C. Lymphocytes production
D. Neutrophils production - The reabsorption of sodium chloride is increased in proximal convoluted tubules by hormones secreted from______________?
A. Anterior pituitary
B. Posterior pituitary
C. Adrenal cortex
D. Adrenal medulla - Most of the sodium is reabsorbed in_____________?
A. PCT
B. DCT
C. Loop of henle
D. Vasa recta - The product, which is obtained by calcining gypsum under steam pressure at 120-130°C or by dehydrating gypsum in the presence of sodium succinate is_______________?
A. Alpha – hemihydrates
B. Beta – hemihydrates
C. Calcium sulphate dihydrate
D. Orthorhombic anhydrate - A patient on warfarin sodium following myocardial infarction reports for an oral surgical procedure which one of the following laboratory tests should be preferred to ascertain the fitness_______________?
A. Prothrombin time
B. Tourniquet time
C. Clotting time
D. Bleeding time
