Inadequate tissue perfusion in hypovolemic shock occurs due to:   Question 9 options:   Decrease in cardiac blood flow due to valvular disease or pericarditis   Increase in intravascular volume leading to fluid volume overload   Decrease in intravascular volume leading to decreased cardiac output   Decrease in peripheral vascular resistance leading to decrease flow

What is happening during the phase labeled with the arrow? Atrial depolarization Ventricular depolarization Ventricular repolarization or  AV valve closure

You are presented with a stack of ECGs on your fist day of your cardiology rotation and are given a single instruction: “read them”. As you progress through the pile, you note the following abnormalities. Explain form where in the heart of the cardiac conduction system each abnormality might have come: Absent P waves Abnormally long QRS complex Abnormally long P-R interval Extra QRS complex

Draw these five graphs on the same set of axes: atrial autorhythmic cell action potential atrial cardiac contractile cell action potential ventricular autorhythmic cell action potential ventricular cardiac contractile cell action potential ventricular myocardial muscle tension

What is autorhythmicity? Describe how nodal cells function as autorhythmic cells to serve as the pacemaker of the heart.

Match the area where blood will flow within the heart during systole (1 point) If blood is in the right atria during diastole, during systole it will move to: If blood is in the right ventricle during diastole, during systole it will move to: If blood is in the left atria during diastole, during systole it will move to: If blood is in the left ventricle during diastole, during systole it will move to: Choose... Choose... The Systemic circulation (body) The Right Ventricle The Pulmonary Circuit The Left Ventricle Choose... ÷ +

A normal patient has an ECG monitor attached to him/her as he/she starts exercises at the gym. The ECG recording shows a significant increase in heart rate to 220 beats/min after 20 minutes of strenuous exercise. What are the consequences and why?   To answer this, be sure to address blood flow through the heart and what is happening to the blood flow, electrical impulses and pressures during each phase of the ECG (p,q,r,s,t).

If you have a resting heart rate of 125 beats/min or bpm then you have: a normal heart rate, bradycardia, or tachycardia

Which of the following arrythmias is characterized by extremely fast but coordinated contractions? Group of answer choices Second degree heart block Bradycardia Atrial flutter Ventricular fibrillation

Options: True or False