Post-Lab B: Pulse & BP
AV valves are best auscultated at the
5th intercostal space
The average heart beats approximately __________ times per minute.
75
In reporting a blood pressure of 120/90, which number represents the diastolic pressure? __________
90
The mean arterial pressure for a patient whose blood pressure is 110/80 is ________.
90 mm Hg
Which of the statements describes the proper way to measure a radial pulse?
Lightly press the tips of your index and middle finger over the lateral wrist, in line with the patient's thumb
Compute the MAP of a person with a BP of 120/90. Drag and drop the correct numbers to complete the calculation.
MAP = 90 + 1/3 (30) = 100 mmHg
Recall from the video the procedure to auscultate (listen to) heart sounds. Which of the following is NOT part of auscultating normal first and second heart sounds?
Position the earpieces so they are angled backward in the ears.
____ is the count of surges of pressure in an artery that occur with each contraction and relaxation of the left ventricle.
Pulse
If you cut yourself and blood spurts rhythmically from the injury, you have probably cut ________.
an artery
In this activity, the right flow tube simulates the _______.
aorta
____ is the force per unit area exerted on a blood vessel wall by the blood, and it fluctuates with the alternating contraction and relaxation of the ventricles.
blood pressure
The first heart sound heard during the cardiac cycle is associated with ________.
closure of AV valves
In the activity, decreasing pressure in the right beaker is analogous to _______.
decreasing afterload
The compensating mechanisms tested in this activity include all of the following EXCEPT _______.
decreasing preload
According to general usage, __________ refers to ventricular relaxation.
diastole
Which of the following is the correct equation for the calculation of mean arterial pressure (MAP)?
diastolic pressure + 1/3 pulse pressure
The first heart sounds are best heard ________.
in the 5th intercostal spaces, at various distances from the sternal margins
Aortic valve stenosis is characterized by _______.
increased resistance to blood flow, thickening of the myocardium and narrowing of the aortic semilunar valve
Patients with aortic valve stenosis experience _______.
increased thickness in the myocardium and a decrease in chamber volume
Increasing the left flow tube radius corresponds to _______.
increasing preload
The QRS complex of the electrocardiogram begins ________.
just prior to ventricular contraction
In this activity, the pump simulates the _______.
left ventricle
The pressure generated during contraction of the atria is ________ that generated during contraction of the ventricles.
less than
____ can be calculated as diastolic pressure plus one-third the pulse pressure because the ventricles spend more time in diastole.
map
The term __________ refers to the alternating surges of pressure in an artery that occur with each contraction and relaxation of the left ventricle.
pulse
___ is calculated as systolic pressure minus diastolic pressure, and indicates the additional pressure in the artery when ventricles are contracting.
pulse pressure
____ is the calculated as systolic pressure minus diastolic pressure and indicates the additional pressure in the artery when ventricles are contracting.
pulse pressure
By taking a pulse you can determine ________.
pulse rate, regularity of the pulse, and strength of the pulse
The pulse is most often taken at the lateral aspect of the wrist, above the thumb, by compressing the __________ artery.
radial
The cardiac cycle ________.
represents all of the events of the heart during one heartbeat
The __________ are characteristic sounds that indicate the resumption of blood flow to the artery being occluded when taking blood pressure.
sounds of Korotkoff
What device will you use today to measure your subject's blood pressure? __________
sphygmomanometer
Which of the following tools are most commonly used to measure blood pressure indirectly?
stethoscope and sphygmomanometer
The first of the two numbers measured when taking the blood pressure represents ________.
systolic pressure
____ is the pressure in the arteries at the peak of ventricular contraction, while ____ is the pressure in the arteries during ventricular relaxation.
systolic pressure - diastolic pressure
____ is the pressure in the arteries at the peak of ventricular contraction, while ____ is the pressure in the arteries during ventricular relaxation.
systolic pressure; diastolic pressure
A left ventricular assist device (LVAD) is a medical device that is sometimes used as an alternative to heart transplant for patients who have a weakened left ventricle. Once implanted, the LVAD pumps blood from the left ventricle to the aorta. Describe the status of the atrioventricular (AV) and semilunar (SL) valves during the ventricular assist.
the AV valves are CLOSED and SL valves are OPEN
Pulse pressure ________.
the difference between systolic and diastolic blood pressure
When the left flow tube radius was increased, _______.
the flow rate increased
Blood pressure is ________.
the pressure of the blood against the blood vessel walls
When ventricular systole begins, intraventricular pressure increases rapidly, closing the atrioventricular (AV) valves.
true
When taking blood pressure, the sounds heard when the pressure cuff is released are due to ________.
turbulent blood flow
Heart sounds are associated with ________.
turbulent blood flow, closure of the AV valves, and closure of the semilunar valves
The term systole refers to ________.
ventricular contraction
Which phase of the cardiac cycle is longest?
ventricular diastole
The semilunar valves are forced open when ________.
ventricular pressure exceeds the pressure in the large arteries leaving the heart
The AV valves close when ________.
ventricular systole begins
