NURS 371 PHARMACOLOGY QUESTIONS AND ANSWERS
LATEST UPDATE ALREADY GRADED A+
Cardiac hemodynamics
The forces or mechanisms involved in circulation
The blood is flowing through the body at different pressures
Higher in the arteries and lower in the venous system
Arteries, venous, circulate, fluid, hydrostatic, colloid
Hemodynamics
The _____ (A) carry less volume than the _____ (V) system
When the heart becomes unable to _____ (C) effectively _____ (F) builds up
Edema results from:
-An increase in _____ (H) pressure
-Decrease _____ (C) pressure
Systole
Contraction of the myocardium that results in ejection of blood from the ventricles
Diastole
Relaxation of the myocardium that allows the ventricles to fill
CO (cardiac output)
Amount of blood pumped by each ventricle in one minute
Heart Rate X Stroke Volume
CI (cardiac index)
More precise measurement of the efficiency of the pumping action of heart
Based on the BSA of an individual
SVR (systemic vascular resistance)
Force the heart has to pump against
Stroke Volume
, Volume of blood pumped with each heartbeat
CO/HR
F
T or F: Increase in HR always mean an increase in CO
Preload
Amount volume within the ventricle the end of diastole (or prior to contraction)
Equals the ventricular filling pressure
Force of venous return
The greater the filling pressure the more the ventricles will stretch
Increase
Factors that affect preload
Does an increase in stroke volume increase or decrease preload?
Decrease
Factors that affect preload
Does an decrease in stroke volume increase or decrease preload?
Increase, return, hypovolemia, regurgitation, failure
How is preload increased?
_____ (I) in blood volume
Increased venous _____ (R)
_____ (H; too much fluid)
_____ (R) of heart valves
Heart _____ (F)
Decrease, shock, diuretics, fowler, dangling
How is preload decreased?
_____ (D) in blood volume
Bleeding/_____ (S)
______ (D)
High _____ (F) with legs _____ (D)
LATEST UPDATE ALREADY GRADED A+
Cardiac hemodynamics
The forces or mechanisms involved in circulation
The blood is flowing through the body at different pressures
Higher in the arteries and lower in the venous system
Arteries, venous, circulate, fluid, hydrostatic, colloid
Hemodynamics
The _____ (A) carry less volume than the _____ (V) system
When the heart becomes unable to _____ (C) effectively _____ (F) builds up
Edema results from:
-An increase in _____ (H) pressure
-Decrease _____ (C) pressure
Systole
Contraction of the myocardium that results in ejection of blood from the ventricles
Diastole
Relaxation of the myocardium that allows the ventricles to fill
CO (cardiac output)
Amount of blood pumped by each ventricle in one minute
Heart Rate X Stroke Volume
CI (cardiac index)
More precise measurement of the efficiency of the pumping action of heart
Based on the BSA of an individual
SVR (systemic vascular resistance)
Force the heart has to pump against
Stroke Volume
, Volume of blood pumped with each heartbeat
CO/HR
F
T or F: Increase in HR always mean an increase in CO
Preload
Amount volume within the ventricle the end of diastole (or prior to contraction)
Equals the ventricular filling pressure
Force of venous return
The greater the filling pressure the more the ventricles will stretch
Increase
Factors that affect preload
Does an increase in stroke volume increase or decrease preload?
Decrease
Factors that affect preload
Does an decrease in stroke volume increase or decrease preload?
Increase, return, hypovolemia, regurgitation, failure
How is preload increased?
_____ (I) in blood volume
Increased venous _____ (R)
_____ (H; too much fluid)
_____ (R) of heart valves
Heart _____ (F)
Decrease, shock, diuretics, fowler, dangling
How is preload decreased?
_____ (D) in blood volume
Bleeding/_____ (S)
______ (D)
High _____ (F) with legs _____ (D)
