The purpose of CPR is to: A Restore oxygenated blood back to the brain and heart B Restore oxygenated blood back to the lungs Restore oxygenated blood back to the C extremities D Restore a pulse to be felt in the carotid artery
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- CPR is a life-saving technique used in emergencies when someone's heartbeat or breathing has stopped. Step 2: Identify the primary goal of CPR. - The main goal of CPR is to maintain circulation and breathing until advanced medical help can take over. Step 3: Show more…
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Which of the following is true regarding the heart? A. It receives oxygenated blood from the lungs via the pulmonary veins. B. It receives deoxygenated blood from the arms and head via the superior vena cava. C. It pumps blood to the body via the systemic arteries. D. All of the above E. Only B and C What are the two main things that determine one's blood pressure? A. Cardiac output and heart rate B. Cardiac output and stroke volume C. Vascular resistance and blood vessel diameter D. Vascular resistance and blood viscosity E. None of the above
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27.) Tom is in respiratory arrest due to an electrical shock. Why does a Good Samaritan have about 4 to 5 minutes to begin CPR? There is a reserve of oxygen in Tom's tissues. The ambient PO2 in the lungs can support life for that long. There is a reserve of oxygen in Tom's blood bound to hemoglobin. The Haldane effect lasts up to 5 minutes. Tom's hypoxic drive will keep him alive for up to 5 minutes. 28.) The addition of CO2 to the blood generates hydrogen ions in the red blood cells, which in turn stimulates them to unload more oxygen. sodium hydrogen potassium nitrogen chloride 29.) The conducting zone contains all of the following EXCEPT the alveoli. the secondary bronchi the terminal bronchioles. the larynx. the primary bronchi. 30.) The blood transports more CO2 in the form of bicarbonate ions than in any other form. bisphosphocarbonate dissolved CO2 gas carbaminohemoglobin bicarbonate ions carboxyhemoglobin 31.) Which of the following is not a driver for the unloading of O2 from oxyhemoglobin? increased temperature increased bisphosphoglycerate (BPG); also called diphosphoglycerate (DPG) increased partial pressure of CO2 increased acid (lower pH) increased partial pressure of O2
9. The P-wave in EKG represents: a. Ventricular depolarization b. Atrial depolarization c. Ventricular repolarization d. Ventricular diastole 10. What is the function of the heart? A. Pumps the blood B. Carry the nutrients and oxygen to the cells C. Helps to regulate acid-base balance & body temperature D. A & B E. All of the above 11. What is the function of the heart chambers? A. Receive the blood B. Pump the blood C. Prevent the backflow of the blood D. A & B E. All of the above 12. What is the function of the heart valves? A. Receive the blood B. Pump the blood C. Prevent the backflow of the blood D. A & B E. All of the above 13. As ventricles contract, the blood tends to flow from A. Ventricles to atria B. Atria to ventricles C. Pulmonary trunk to ventricles 14. When ventricles are fully contracted, which of the following follows? A. The papillary muscles shorten B. The chordae tendineae are pulled taut C. The chordae tendineae are slack D. A & B E. A & C 15. When ventricles are fully contracted, which of the following follows? A. Blood ejects from the ventricles to the arteries B. The semilunar valves open C. The semilunar valves close D. A & B E. A & C 16. When ventricles are fully relaxed, which of the following follows? A. Blood flows from atria to the ventricles B. The semilunar valves open C. The semilunar valves close D. A & B E. A & C
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