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Phenylephrine is an alpha agonist, which produces peripheral arteriolar constriction, thereby increasing afterload and causing reflex bradycardia in most cases.
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∙ 14y ago
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Which vasopressor exhibits pure alpha effects and thus increases blood pressure without driving up heart rate?
phenylephrine
What rate is the same as the cardiac rate?
respiratory
Phenylephrine is safe for children?
no i do not think so because in can make some cereberal effects .
What does cardiac output do if the heart rate decreases?
Cardiac output = heart rate X stroke volume Thus, if the heart rate decreases so will the cardiac output, assuming the stroke volume is constant.
What are some side effects of phenylephrine?
Some of the possible side effects from taking the drug called phenylephrine are a rapid heart beat, severe dizziness, and a dangerously high blood pressure. If any of these symptoms are being experienced, one should seek immediate medical attention.
Determined by heart rate x stroke volume?
cardiac output
Which statement is correct about cardiac output?
cardiac output is heart rate multiplied by stroke volume,
What is phenylephrine HCI?
Phenylephrine is a vasoconstricting agent.
What effects cardiac output during the first few stages of exercise?
Cardiac Output is computed as your heart rate times your stroke volume (volume of blood ejected from the heart each beat). The main contributor when exercising is an acceleration in heart rate. Stroke volume can be increased, but only by prolonged aerobic training. To answer your Q, HR as has the main effect on cardiac output during the first stages of exercise.**The first few stages of cardiac exercise will 'affect' cardiac output, not 'effect' it. If you don't know the difference between the two, you should not be asking a question such as this...
What is the formula for calculating cardiac output?
CO=HRXSV, Where HR is heart rate and SV is stroke volume
What does heart rate and stroke volume determine?
cardiac output
What can decrease the cardiac output?
The cardiac output can be decreased by decreasing the force of contraction of the ventricular myocardium and decreasing the heart rate.
