Drug Pharmacology

Question 0

Epinephrine 1:1000

Answer 0

Decreases chemical mediator released during allergic reaction

Question 1

Ipatropium

Answer 1

Relaxes smooth muscle of bronchi, bronchodilation

Question 2

Aminophylline

Answer 2

Relaxes smooth muscle of bronchial airways & pulmonary blood vessels

Question 3

Methylprednisolone

Answer 3

Anti inflammatory, CNS stimulant, prevents release of histamine

Question 4

Albuterol

Answer 4

Relaxes smooth muscle, bronchodilation & Muchas drainage

Question 5

Terbutaline

Answer 5

Stimulates Beta 2 receptors resulting in relaxation of smooth muscles & uterus

Question 6

Ondansetron

Answer 6

Selectively blocks 5-HT3 serotonin receptors

Question 7

Meperidine

Answer 7

Depress CNS & pain relief (binds to opioid receptors); smooth muscle relaxer/peripheral vasodilator & lowers BP; depress vasomotor & respiratory centers

Question 8

Promethazine

Answer 8

Blocks histamine receptors, antiemetic effect through antimuscurinic actions of antihistamines; CNS sedative action by reducing stimuli to brainstem reticular system

Question 9

Fentanyl

Answer 9

Relieves pain & anxiety by central effects (binds to opioid receptors); alters pain receptors & increases pain threshold

Question 10

Nitroglycerine

Answer 10

Relaxes smooth muscle resulting in dilation of arterial & venous beds; vasodilation reduces preload and after load; myocardial O2 demand decreases; dilation of coronary arteries; reduces vaso spam & increases blood flow to ischemic areas; may reduce systolic, diastolic, and mean arterial pressures

Question 11

Aspirin

Answer 11

Blocks peripheral pain impulses; prevents clots

Question 12

Oxygen

Answer 12

Required for life; decreases ventilation & cardiac output; increases alveolar O2 tension; reduces magnitude & extent of ST segment changes during AMI

Question 13

Morphine

Answer 13

Relieves pain & anxiety; depress respiratory, cough, & faso motor centers in medulla; may reduce myocardial O2 demand; stimulates parasympathetic nervous system resulting in decreased peripheral resistance, increase venous capacity & venous pooling, and decrease venous return

Question 14

Diphenhaydramine

Answer 14

Strongly opposes actions of histamine by binding w/ histamine H1 receptor site; inhibet mast cell damage, preventing release of more histamine; associated sedative effect; anticholinergic drying mucous membranes & oral secretions; decrease vessel dilation & “leakiness” during allergic reaction; antiemetic & antipruritic effects