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Field Drugs > Actions > Flashcards

Actions Flashcards

1
Q

Adenosine

A

-Slows electrical conductivity through AV node

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2
Q

Albuterol

A
  • Activates the beta-2 adrenergic receptors to relax smooth muscle
  • Bronchodilation, relieves bronchospasms, and reduces airway resistance
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3
Q

Amiodarone

A
  • Prolongs duration of action potential and effective refractory period
  • Includes noncompetitive beta-adrenoreceptor and calcium channel blocker activity
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4
Q

Aspirin

A
  • Interrupts Thromboxone A2 (TA2)

- Inhibits prostaglandins

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5
Q

Atropine Sulfate

A
  • Competes with acetylcholine receptor sites at SA and AV nodes
  • Increases heart rate by increasing conduction at SA and AV nodes
  • Inhibits secretions by decreasing PNS on bronchial, salivary, sweat and GI glands
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6
Q

Brethine

A
  • Causes effects of beta 2

- Has some effects on beta 1

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7
Q

Calcium Gluconate

A

Cardioprotective agent in hyperkalemia

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8
Q

Cardizem

A
  • Slows conduction at AV node

- Causes coronary and peripheral vasodilation

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9
Q

Detrose 50%

A

Increase blood glucose by providing free sugar quickly released into the blood stream

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10
Q

Diazepam

A
  • Increases the effect of gamma - aminyobutyvic acid (GAMA)
  • Acts on the CNS to raise the seizure threshold in the motor cortex
  • Causes amnesia
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11
Q

Diphenhydramine

A

Binds to histamine receptor sites, suppressing histamine induced allergic symptoms

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12
Q

Dopamine

A
  • At low and medium doses beta effects, mostly inotropic
  • At medium to high dose alpha and beta effects
  • At high doses alpha effects
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13
Q

Epi 1:1000

A
  • Bronchodilation (beta 2)
  • Vasocontriction (alpha)
  • On the heart (beta-1):
    • Increased heart rate / chronotropic
    • Increased contractility / inotropic
    • Increased AV conduction / dromotropic
    • Increased automaticity / dromotropic
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14
Q

Epi 1:10,000

A
  • Bronchodilation (beta 2)
  • Vasocontriction (alpha)
  • On the heart (beta-1):
    • Increased heart rate / chronotropic
    • Increased contractility / inotropic
    • Increased AV conduction / dromotropic
    • Increased automaticity / dromotropic
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15
Q

Etomidate

A

Exact measure is unknown but appears to have GABA effects

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16
Q

Fentanyl

A

Combines with receptor in the brain to produce analgesic effects

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17
Q

Flumazenil

A

Decreases the effect of GABA

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18
Q

Furosemide

A

Inhibits reabsorption of sodium and chloride primarily in Loop of Henle and also in proximal and distal renal tubules

19
Q

Glucagon

A

Increases blood glucose by converting glycogen stored in the liver to glucose

20
Q

Haloperidol

A
  • Blocks dopamine receptors in the brain associated with mood and behavior
  • Exerts strong antiemetic effects and impairs central thermoregulation
21
Q

Ipratroprium

A

Blocks acetylcholine at receptor sites on bronchial smooth muscle

22
Q

Lidocane

A

Sodium channel blocker

23
Q

Lorazepam

A
  • Enhances the effects of GABA

- Effects: anxiolytic, sedative, hypnotic, and skeletal muscle relaxant

24
Q

Magnesium Sulfate

A
  • CNS depressant

- Depressant of smooth, skeletal, and cardiac muscle

25
Q

Mannitol

A

Causes a fluid shift in the brain, pulls the fluid into the vascular space and causes it to be urinated off (diuretic effect)

26
Q

Metoclopramide

A
  • Elevation of Chemoreceptor Trigger Zone (CTZ) threshhold

- Sensitizes GI smooth muscle to effects of acetylcholine by direct action

27
Q

Metoprolol

A

Blocks beta-1 receptor sites causing:

  • Decresed HR
  • Decreased cardiac output
  • Decrease BP
28
Q

Midazolam

A
  • Intensifies activity of GABA

- Calms, relaxes skeletal muscles, and in high doses causes sleep

29
Q

Morphine Sulfate

A
  • CNS depressant acting on opiate receptors in the brain
  • Potent pain reliever and sedative
  • Relaxes respiratory effort
30
Q

Naloxone

A

Reverses effects of opioid overdose by occupying opiate receptor sites

31
Q

Nitroglycerine

A
  • Relaxes systemic venous and arterial vessels causing vasodilatation
  • Dilates coronary arteries
32
Q

Opthaine

A

Blocks the pain receptors in the eye

33
Q

Oxytocin

A

Stimulates uterine contractions

34
Q

Procainamide

A
  • Increases duration of the refractory period
  • Depresses the excitability of the myocardium to electrical stimulation, and reduces conduction velocity in the atria, ventricles, His-Purkinje system
35
Q

Promethazine

A
  • Takes away the sensation to vomit by antagonizing H1 receptors
  • Possible depressor of Chemoreceptor Trigger Zone (CTZ) in medulla
36
Q

Racemic Epinephrine

A
  • Stimulates alpha and beta adrenergic receptors, with a slight preference on beta 2 receptors
  • Causes bronchodilation and a decrease in mucus secreation
37
Q

Sodium Bicarbonate

A

A potent systemic antacid, raises the pH of blood by buffering excess hydrogen ions (acidosis)

38
Q

Methylprednisone Sodium

A

Decreases the inflammatory response

39
Q

Succinylcholine

A

Works on skeletal muscle, blocks voluntary muscles

40
Q

Thiamine

A

Necessary for carbohydrate metabolism (helps breakdown sugar)

41
Q

Vecuronium Bromide

A

Inhibits neuromuscular transmission by competitive binding with acetylcholine to motor receptors

42
Q

Verapamil

A
  • Inhibits calcium ion influx through slow channels into cell of myocardial and arterial smooth muscle
  • Decreases and slows SA and AV node
43
Q

Zofran

A
  • Reduces the sensation to vomit

- Action not fully characterized

44
Q

Ketamine

A

Inhibition of NMDA receptors resulting in dissociate state

Field Drugs (6 decks)

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