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
Related Mcqs:
- The mechanism of action of sodium nitroprusside is_____________?
A. Increases cAMP
B. Direct Vasodilator
C. Calcium channel blocker
D. Block the sympathetic flow at hypothalamus - 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 - Ions participating in clotting mechanism are________________?
A. Iron
B. Copper
C. Calcium
D. Aluminum - Most importent compansatory mechanism in metabolic acidosis______________?
A. Hyperventilation
B. Increased NH3 excretion by kidneys
C. Increased urinary phosphates
D. Increased HCO3 Production - MEchanism of adhesion of GIC restoration with tooth surface is by mean of ______________?
A. Carboxyl group
B. Chelates with Metal Ions
C. C=C double bond
D. Polymer chains - The mechanism of genetic transfer where a phage serves as a vehicle is_______________?
A. Transformation
B. Translation
C. Conjugation
D. Lysogeny
