QUESTION 23 Which of the following statements is correct, given the following pressure measurements: Aorta = 100 mm Hg Left atrium = 40 mm Hg Left ventricle = 120 mm Hg O The ventricle is in diastole, the filling phase The semilunar valve is open The valves are all closed The atrium is in the ejection phase

Canvas ← × O During stroke volume, the pressure in the ventricles forces AV and semi-lunar valves open D O True O False Question 41 X The sound is heard during ventricular systole O True O False Question 42 To calculate EDV, you must sum SV and ESV O True O False

During exercise, the percentage of the cardiac output that is apportioned to the _______________ is almost zero.

Question 4 The ECG machine is reading "ERROR-Check lead placement." Which of the following requires correction? Correct Answer OV2 at fifth intercostal space midclavicular line. You Answered O V6 at left midaxillary line at level of V4 horizontally. V1 at fourth intercostal space at right sternal angle. V5 at left anterior axillary line at level of V4 horizontally. 0/1 pts V4, not V2, is located at the fifth intercostal space at midclavicular line. Correct lead placement on the chest for a 12 lead electrocardiogram is V1, fourth intercostal space at right sternal angle; V2, fourth intercostal space at left sternal border; V3, midway between V2 and V4; V4, Fifth intercostal space at midclavicular line; V5, left anterior axillary line at level of V4 horizontally; V6, left midaxillary line at level of V4 horizontally.

Question 46 Corresponding venous blood to the celiac trunk, superior and inferior mesenteric arteries go to: Hepatic portal vein O Mesenteric vein Superior vena cava Coronary sinus Inferior vena cava

Question 33 Which pccurs during isovolumetric ventricular contraction? O Rapid filling of the ventricles occurs. O No blood enters or leaves the ventricles. The maximum volume of blood is ejected. Ventricular pressure reaches its maximum value of the cardiac cycle. The pressure in the ventricles decreases while the pressure in the atria increases. MacBook Pro O

The standard EKG consists of 10 sensors that record 12 leads of the heart’s electrical activity from different angles, allowing for a thorough three-dimensional interpretation of its activity. This is transmitted by the electrodes to the equipment to be interpreted and is used to diagnose cardiac medical conditions. In case of an abnormal EKG, the second step would be to use a Holter monitor. How would you explain to your classmates how to perform an EKG (steps)? Where will you place the electrodes when performing and EKG? Why? What are the different lead types, connections, and placements? When you conclude an EKG, what are the different components that you need to observe and confirm before you disconnect the patient? Can you explain the difference between normal, abnormal, and artifacts? What is a Holter monitor? Under what circumstances would one be ordered for a patient? How do you use a Holter monitor? Educate a patient: What you will do before, during, and after an…

Purkinje fibers are the autorhythmic cells that transfer depolarization current directly to the cardiac muscle cells in the myocardium. O True O False

QUESTION 4 Which of the following can cause edema? Select ALL correct answers. O Chronic hypertension High osmotic pressure Blockage of lymphatic vessels O Inflammation 0000