PN 2005 Drugs exam questions with
answers
Midazolam - ➰CORRECT ANSWERS ✔✔May potentiate the effects of
GABA, depress the central nervous system, and suppress the spread of seizure
activity.
Morphine - ➰CORRECT ANSWERS ✔✔Uknown. Binds with opioid
receptors in the central feverous system, altering perceptions of and emotional
response to pain.
Naloxone - ➰CORRECT ANSWERS ✔✔May displace opioid analgesics from
their receptors (competitive antagonism); drug has no pharmacologic activity
of its own.
Nitrofurantoin - ➰CORRECT ANSWERS ✔✔May interfere with bacterial
enzymes systems and bacterial cell-wall formation.
Nitroglycerin - ➰CORRECT ANSWERS ✔✔Reduces cardiac oxygen demand
by decreasing left ventricular end-diastolic pressure (preload) and, to a lesser
extent, systemic vascular resistance (afterload). Also increases blood flow
through the collateral coronary vessels.
, Nystatin - ➰CORRECT ANSWERS ✔✔Probably binds to sterols in fungal cell
membrane, altering cell permeability and allowing leakage of intercellular
components.
Omeprazole - ➰CORRECT ANSWERS ✔✔Inhibits proton pump activity by
binding to hydrogen-potassium adenosine triphosphatase, located at secretory
surface of gastric parietal cells, to suppress gastric acid secretion.
Oxytocin - ➰CORRECT ANSWERS ✔✔Cause potent and selective
stimulation of uterine and mammary gland smooth muscles.
Dilantin - Phenytoin - ➰CORRECT ANSWERS ✔✔May stabilize neuronal
membranes and limit seizure activity either by increasing efflux or decreasing
influx of sodium ions across cell membranes in the motor cortex during
generation of nerve impulses.
Phenobarbital - ➰CORRECT ANSWERS ✔✔Increases the amount of time
chloride channels are open which in turn depresses the central nervous
system. Done by acting on GABA-A receptor subunits.
Potassium Acetate/Chloride - ➰CORRECT ANSWERS ✔✔Replaces
potassium and maintains potassium levels
Prednisone - ➰CORRECT ANSWERS ✔✔Not clearly defined. Decreases
inflammation, mainly by stabilizing leukocyte lysosomal membranes;
suppresses immune response; stimulates bone marrow; and influences protein,
fat, and carbohydrate metabolism.
answers
Midazolam - ➰CORRECT ANSWERS ✔✔May potentiate the effects of
GABA, depress the central nervous system, and suppress the spread of seizure
activity.
Morphine - ➰CORRECT ANSWERS ✔✔Uknown. Binds with opioid
receptors in the central feverous system, altering perceptions of and emotional
response to pain.
Naloxone - ➰CORRECT ANSWERS ✔✔May displace opioid analgesics from
their receptors (competitive antagonism); drug has no pharmacologic activity
of its own.
Nitrofurantoin - ➰CORRECT ANSWERS ✔✔May interfere with bacterial
enzymes systems and bacterial cell-wall formation.
Nitroglycerin - ➰CORRECT ANSWERS ✔✔Reduces cardiac oxygen demand
by decreasing left ventricular end-diastolic pressure (preload) and, to a lesser
extent, systemic vascular resistance (afterload). Also increases blood flow
through the collateral coronary vessels.
, Nystatin - ➰CORRECT ANSWERS ✔✔Probably binds to sterols in fungal cell
membrane, altering cell permeability and allowing leakage of intercellular
components.
Omeprazole - ➰CORRECT ANSWERS ✔✔Inhibits proton pump activity by
binding to hydrogen-potassium adenosine triphosphatase, located at secretory
surface of gastric parietal cells, to suppress gastric acid secretion.
Oxytocin - ➰CORRECT ANSWERS ✔✔Cause potent and selective
stimulation of uterine and mammary gland smooth muscles.
Dilantin - Phenytoin - ➰CORRECT ANSWERS ✔✔May stabilize neuronal
membranes and limit seizure activity either by increasing efflux or decreasing
influx of sodium ions across cell membranes in the motor cortex during
generation of nerve impulses.
Phenobarbital - ➰CORRECT ANSWERS ✔✔Increases the amount of time
chloride channels are open which in turn depresses the central nervous
system. Done by acting on GABA-A receptor subunits.
Potassium Acetate/Chloride - ➰CORRECT ANSWERS ✔✔Replaces
potassium and maintains potassium levels
Prednisone - ➰CORRECT ANSWERS ✔✔Not clearly defined. Decreases
inflammation, mainly by stabilizing leukocyte lysosomal membranes;
suppresses immune response; stimulates bone marrow; and influences protein,
fat, and carbohydrate metabolism.
