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Home Question Bank Medicine Archive 2025 January 22

Medicine Questions from Jan 22,2025

Browse the Medicine Q&A Archive for Jan 22,2025, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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Part A After you note a murmur in a newborn, the pediatric cardiology consultant diagnoses a patent ductus arteriosus. Why is this a cause for concer Because blood is flowing from the pulmonary trunk into the aorta, the lungs will not receive enough blood for normal oxygenation to occu The higher pressure in the aorta will push extra blood through the ductus arteriosus into the child's pulmonary circulation. The baby may develop a defect in the interventricular septum to compensate for the abnormally patent channel. The child's coronary arteries will receive too much blood from the pulmonary trunk. Part A As part of a blood drive on campus for the American Red Cross, you and your friends have just donated 500 mil of blood. You are now relaxing at the student lounge, though you are thirsty, you haver't bothered to buy yourself a drink, Other than a litte soreness of the skin and tissue around your median cubital vein, you feel fine. most likely affected your cardiac output, heart rate, and stroke volume? no change in cardiac output, increabed heart rate, decreased stroke volume no change in cardiac output, decreased heart rate, incteased stroke volume decrease in cardiac output, decreased heart rate, decreased stroke volume increase in cardiac output, increased heart rate, increased stroke volume Submit Sise Seribact Reset Help Heart rate (HR) End systolic volume (ESV) Cardiac output (CO) Venous return (VR) Stroke volume (SV) End dlastolic volume (EDV) 1. \( \square \) the volume of blood in one venticle before contraction 2. \( \square \) the volume of blood per minute flowing into one atrium 3. \( \square \) the number of heart beats per minute 4. \( \square \) the volume of blood per heart beat pumped out by ond ventricle 5. \( \square \) the volume of blood per minute pumped out by one ventricle 6. \( \square \) the volume of blood in one ventricle after contraction Part B Which of the following can be heard with a stethoscope most easily? View Available Hint(s) Isovolumetric contraction Closing of atrioventricular valves Contraction of atria Part A The beginning of the QRS complex of the electrocardiogram (ECG) immediately precedes which of the following event View Available Hint(s) closing of the atrioventricular valves blood ejection from the ventricles atrial contraction closing of the semilunar valves Purkinje fibers initiate spontaneous action potentials, which cause the ventricles to contract early. Action potentials are not delayed sufficiently at the AV node. Spontaneous action potentials in the SA node overlap such that the repolarizing phase of one action potential cancels out the depolarizing phase of the next. Action potentials propagate into the ventricles before the contractile cells have repolarized from the previous heartbeat. Submit 16. List 3 strategies for cancer prevention 17. List 2 cancer imaging technologies l. 13. List and describe 3 treatment options for cancer. 17. List 2 cancer imaging technologies.
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