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Questions Bank (1401985 total)
Jugular vein distention is most associated with
right-sided heart failure.
100%
left wall infarct and left ventricular failure.
0%
aortic valve stenosis.
0%
low volume shock right-sided heart failure.
0%
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Baroreceptors
are found in all arterioles and sense plasma levels of CO
2
.
0%
are located in the carotid sinus and aortic arch and sense changes in blood pressure.
100%
monitor [H
+
] and therefore regulate blood pH.
0%
affect respiratory rate.
0%
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What happens during ventricular diastole?
Blood is pumped to the lungs and systemic circulation.
0%
The ventricles are filling with blood.
100%
All semilunar valves are open.
0%
Both AV valves are closed.
0%
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Which of the following is most likely to relieve an anxiety-induced tachycardia?
Vagolytic drug
0%
Beta
1
-adrenergic blocker
0%
Sympathomimetic
0%
Beta
1
-adrenergic agonist
0%
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An ejection fraction of 30% is
characteristic of a failing heart.
100%
the amount of oxygenated hemoglobin in the blood in the left ventricle.
0%
normal.
0%
characteristic of a healthy person who is engaged in aerobic exercise.
0%
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A patient has hemorrhaged 1 liter of blood; he is diaphoretic (profuse perspiration), oliguric (decreased urinary output), and tachycardic. Physiologically, what is happening?
In response to the blood loss and declining blood pressure, the baroreceptor reflex has kicked in, causing a sympathetic discharge.
100%
The patient has lost so much plasma protein (albumin) that fluid has shifted into his tissue spaces.
0%
The shock-induced hypotension has inactivated all autonomic receptors.
0%
The shock-induced low blood pressure has caused a vagal discharge.
0%
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If a child with nephrotic syndrome loses large amounts of albumin in the urine (albuminuria),
plasma oncotic pressure decreases and edema develops.
0%
lymph flow decreases.
0%
capillary hydrostatic pressure increases, causing edema.
0%
plasma oncotic pressure increases, thereby "pulling" fluid into the capillary, causing poor skin turgor.
0%
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Which of the following is true of vasoconstriction?
Increases SVR
100%
Caused by parasympathetic nerve stimulation
0%
Generally accompanied by arteriolar dilation
0%
Caused by vagal discharge
0%
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Plasma oncotic pressure is caused primarily by
blood pressure.
0%
plasma proteins, especially albumin.
0%
lymph.
0%
electrolytes such as sodium and chloride.
0%
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Which of the following drugs is most likely to increase systemic vascular resistance?
Arteriolar constrictor
0%
Arteriolar dilator
0%
Vasodilator
0%
(+) Inotropic agent
0%
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