CV, Diuretics, & HTN Medications Flashcards
(41 cards)
Angiotensin is a very potent vaso___.
Vasoconstrictor
Does the parasympathetic system ⬆ or ⬇ our BP?
Decrease, vagal down, bradycardia
Which system is “fight or flight”?
Sympathetic system
Which electrolyte controls muscle contraction, nerve impulse, and stimulates production of ADH with high levels of Na.
Na
Which electrolyte controls cardiac contraction?
K
Which electrolyte controls muscle contraction and nerve function?
Ca
Which electrolyte controls muscle contractility?
Mg
What substance allows for electrical and mechanical function of the heart?
Electrolytes
What is inhibited by Digoxin?
Na-K pump
Amount of volume in left ventricle before contracting.
Preload
Positive inotropic?
Contractility
Negative chronotropic
Heart rate
Negative dromotropic
Conduction of heart
What does digoxin do?
Increases the force and contractility of the heart, increases CO, and decreases preload.
T/F
The first dose of digoxin is smaller than the maintenance dose.
False, first dose is larger than the second dose.
Dose of digoxin for the first 24 hrs.
0.75mg- 1.25mg in divided doses
Maintenance dose for digoxin
0.125mg - 0.25mg daily
Peak and Duration for digoxin
Peak in 2hrs, duration of 6 days
HF that causes blood to back up into the periphery tissues is called?
Right-sided HF
HF that causes blood to back up into the lungs is called?
Left-sided HF
Can you reverse damage done when it comes to HF?
No
What stage of HF is high risk of HF w/o symptoms or structural disease
Stage 1
What stage of HF is severe structural heart disease and marked symptoms of HF at rest.
Stage 4
List some nonpharmacologic tx for HF.
- limit salt intake
- limit or avoid alcohol
- stop smoking (nicotine-vasoconstrictor)
- decrease saturated fats
- mild exercise
