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PHCY310 Quiz am L24 Cardiovascular lab tests, erstellt von Mer Scott am 14/04/2019.

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L24 Cardiovascular lab tests

Frage 1 von 8

1

The normal range for the heart rate is 60-100bpm.

Wähle eins der folgenden:

  • WAHR
  • FALSCH

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Frage 2 von 8

1

The average cardiac output for a healthy man is 5.5 L/min.

Wähle eins der folgenden:

  • WAHR
  • FALSCH

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Frage 3 von 8

1

Stroke volume is the volume of blood pumped from the ventricles (usually LV) per heart beat. It can be measured. Typically ~ mL of blood is pumped from the left ventricle through the aorta to the vascular system with a heart beat. The normal range is mL, and this is affected by preload, afterload, & contractility of the ventricles.
It can be measured with . The stroke volume = end volume - end volume, i.e. the amount of blood which leaves the heart is equal to the amount of blood heart that the heart, minus the amount of blood in the heart.
This is measured as blood passes through heart during ventricular contraction, and scaled by body .

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    75
    60-120
    echocardiography
    diastolic
    systolic
    entered
    left
    valves
    surface area

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Frage 4 von 8

1

Cardiac output (volume per time) is not measured, but with doppler echocardiography we can find the SV and HR and CO is therefore .

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    directly
    HR x SV
    HR / SV
    HR + SV

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Frage 5 von 8

1

The ejection fraction is the fraction of blood pumped from the ventricles (usually LV, LVEF) with each heart beat. Ejection fraction = volume/ volume. ~ % is normal but can appear ‘normal’ in some types of heart . It is measured with an echocardiogram or .

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    stroke
    end disastolic
    60
    failure
    angiography

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Frage 6 von 8

1

Blood pressure is the hydrostatic pressure exerted by circulating blood on vessel (usually arterial). It is measured in a large artery (usually ) using a (+/- a stethoscope) and expressed as systolic pressure over diastolic pressure in mmHg. Blood pressure is a function of , and arterial compliance (AC). Normal resting blood pressure in an adult is ~ mmHg and > mmHg systolic indicates hypertension.

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    wall
    brachial
    sphygmomanometer
    CO, TPR
    120/80
    140

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Frage 7 von 8

1

Mean arterial pressure, the average arterial blood pressure, is a function of cardiac output and peripheral resistance (MAP = ), and has a median normal value of mmHg (range ).

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    CO x TPR
    CO / TPR
    65-110
    70

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Frage 8 von 8

1

Choose the incorrect statement about CVP, central venous pressure(the hydrostatic pressure on the walls of the venae cavae near the right side of the heart.)

Wähle eine der folgenden:

  • Has a normal range of 2-6 mmHg

  • Is often used to monitor hypovolaemia, but also is elevated in right-sided heart failure (e.g. in severe COPD)

  • Is measured using central venous catheters or indirectly by measuring jugular venous pressure

  • Approximates left atrial pressure

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