Post-lecture activity (Week 10)

COLUMBRES

COLUMBRES

by Rustana Kym Columbres -
Number of replies: 0

  1. High Blood Pressure

    1. Afterload is observed because the left ventricle needs to work harder in order to eject blood into the aorta.

  2. Massive Bleeding

    1. When the body loses blood, heart rate increases. This causes preload to decrease while it causes afterload to increase

  3. Dopamine

    1. Dopamine produces positive chronotropic and inotropic effects on the myocardium, resulting in increased heart rate and cardiac contractility.

  4. Running A Sprint

    1. The body uses up more oxygen, so therefore the blood needs an increase in heart rate to compensate for the oxygen being lost in the body. An increased cardiac output can be seen.

  5. Hyperthyroidism with increased secretion of thyroid hormones

    1. Thyroid hormones can increase myocardial inotropy and heart rate that can raise preload and an increase in stroke volume.

  6. Massive myocardial infarction (cardiac tissue death)

    1. The loss of myocardium impairs cardiac function, which can lead to a decrease in cardiac output.

  7. Hypothermia

    1. Cardiac output drops because the body’s core temperature drops below 24 degrees celsius, causing the heart rate to decrease.

  8. Emotional Distress

    1. Your heart rate, blood pressure, and blood sugar levels increase due to the release of hormones such as cortisol and adrenaline. This increases cardiac output.