Bio 669 Quiz 4 Graded A+

Bio 669 Quiz 4 Graded A+ A 12 year old boy presenting with complaints of fever, mink macular rash on the trunk, and finding a diastolic murmer on the exam should be investigated for possible rheumatic fever a common and overlooked cause of chronic orthostatic hypertension is autonomic neurophathy in person with diabetes A mitral valve prolapse would be heard during ventricular systole A patient presents with fever, diffuse microemboli presenting as petechial lesions, painful lesions on the fingertips and what looks like non-tender bruising on both hands is most indicative of which disease process? infective endocarditis A patient presents with fever, diffuse microemboli, presenting as petichial lesions, painful lesions on the fingertips and what looks like non-tender bruising on both hands is most indicative of which disease process infective endocarditis a result of the action potentials long duration in stimulating muscle is that all of the above a thrombus is a blood clot that remains attatched to a vessel wall. Which of the following is NOT one of the main factors as proposed by Virchow obesity All of the following antihypertensive agents would be appropriate first line treatments EXCEPT beta blockers an aortic semilunar valve prolapse would be best heard during ventricular diastole an atherosclerotic area that has ruptured is termed complicated plaque an increase in CA++ influx brought about by catecholamines binding to beta receptors on the myocardium will result in both an increase in contractility and heart rate/conduction speed Arterial chemoreceptors within the aortic arch and carotid arteries: Increase heart rate, stroke volume and blood pressure in response to decreased oxygen or increased CO2 levels as a result of the starling effect stroke volume should increase following an increase in preload As a wave of action potentials travel from the atria to the ventricles, it is momentarily delayed by about 0.1 second as a result of slow conduction through the AV node choose the correct conduction pathway for a cardiac action potential SA node to AV node to bundle of HIS to bundle branches to purkinje fibers How muc of the oxygen carried by hemoglobin in the blood is actually transferred to the myocardium 70-75 hypertensive crisis (malignant hypertension) is best defined as rapidly progressive hypertension with a diastolic pressure of 140mmhg or more Identify the correct path of blood through the heart and lungs vena Cava → R Atrium → Tricuspid valve → Right ventricle → Pulmonary artery- Pulmonary vein → L Atrium → Mitral valve → L Ventricle → Aorta in cardiac muscle, Na+ inactivation gates will open again following another depolarization to potentially occur when: when the membrane returns to resting potential inermittent claudication is a sign of peripheral artery disease Myocardial hibernation is best described as myocardial cells that are persistently ischemic and undergo metabolic adaptation to prolong survival myocardial infacrtion that shows an inverted T wave and ST segment depression is most likely a result of non-stemi Myocardial remodeling of the affected area is a process that results in Hypertrophy that occurs with loss of contractile function Myocardial stunning refers to the Temporary loss of contractile function that persists for hours to days after restoration of perfusion Natiuretic peptides act by stimulates the release of Na+ (thus increases urine volume f