FP-C #8 Flashcards
Sedative-hypnotic agents
depresses the CNS and also provides some anesthesia –> relaxes muscle and brain
Antiarrhythmic class I medications
blocks sodium channels–> reduces myocardial conduction and automaticity–> slows HR and conduction
Anxiolytics
depresses the CNS–> calming and sedates - lowers BP and HR
Calcium
improves contractions and stabilizes heart cells
5- hydroxytriptamine receptor antagonist antiemetics
selectively blocks serotonin receptors in the medulla–> reduces nausea/vomiting
Direct vasodilator medications
causes direct dilation of arterial smooth muscle–> lowers BP and reduces SVR
Magnesium sulfate
calms muscle cells and slows SA conduction–> corrects convulsions in eclampsia, corrects torsades, corrects hypomagnesemia
Phenothiazine antiemetics
blocks dopamine in the cerebral medulla–> suppresses the vomiting center - also has some antihistamine action
Ultra short-acting nonbarbituate hypnotic agents: etomidate type
depresses the CNS –> relaxes muscles and brain
Nitrates
arterial and venous smooth muscle relaxant–> vasodilates–> lowers BP and increases coronary blood flow
Barbituates
depresses the sensory cortex–> prevents Sz and sedates - lowers BP and HR
Alpha-adrenergic antagonists
blocks alpha receptors–> prevents vasoconstriction–> BP lowers
ACE inhibitors
prevents angiotensin -aldosterone system–> lowers BP
Benzodiazepines
depresses the CNS through GABA inhibition –> relaxes muscles and brain- lowers BP and HR
Antiarrhythmic class II medications
blocks beta I receptors–> slows HR
Histamine-2 blocker
blocks histamine 2 receptors–> reduces gastric acids