Pharmacology Flashcards

1
Q

which drug isn’t used in the secondary prevention following MI

A

furosemide

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2
Q

which drug can cause hyperkalaemia

A

ramipril

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3
Q

which drug doesn’t interact pharmacodynamically with other drugs to cause hypotension

A

simvastatin

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4
Q

effect of rifampicin on ethylestriadol

A

unchanged Km and higher Vmax

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5
Q

which drug doesn’t need to be used with caution in px with renal impairment

A

omeprazole

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6
Q

drug that exhibits first order elimination kinetics administered b constant IV infusion

A

steady state plasma concentration is achieved when the rate of administration equals the rate of elimination

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7
Q

apparent volée of distribution

A

knowledge of it allows the calculation of a loading dose

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8
Q

drug with a half life of 4 hours
within a few mins plasma concern 10mg/L
concen of drug after 24 hours is

A

0.161 mg/L

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9
Q

for a drug thats hows first order elimination kinetics which one of the following will not occur if its dosage via the oral route at administration is double

A

doubling the half life

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10
Q

drug X has first order elimination kinetics and has a half life of 6h
if administered by constant IV infusion how long will it take for the plasma concen to reach approx 94% of its final steady state concen

A

24 hours

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11
Q

sildenafil and isosorbide mononitrate leads to what

A

postural hhypotension

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12
Q

what can exacerbate gout when px is on allopurinol

A

furosemide

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13
Q

grapefruit and statins

A

muscle pains

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14
Q

what drug may be decreased by impaired renal function

A

furodemide

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15
Q

on warfarin for AFib. mod arthritic pain what drug should be given

A

paracetamol

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16
Q

overdose of paracetamol 6 hours ago

A

IV N acetylcysteine

17
Q

px becomes hypotensive after spinal anaesthetic

A

oxygen
IV fluids
Ephedrine

18
Q

lipid soluble drugs and their volume of distribution

A

Vd may exceed the total volume of the body

19
Q

how does a spinal anaesthesia cause hypotension

A

blockage of sympathetic transmission to blood vessels causing vasodilation