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Patho Ch 8 PopQuiz
| Question | Answer |
|---|---|
| T/f? Vasoconstriction generally increases bloodflow and vasodilation generally decreases bloodflow. | False: the opposite |
| t/f? two thirds of blood volume is found in veins | true |
| t/f? populations with the lowest average total blood cholesterol have the highest rates of cardiovascular disease | false: countries with the lowest avg cholesterol have the lowest rates of cardiovascular disease |
| t/f? total cholesterol <200mg/dL and LDL cholesterol <100 is desirable | true |
| fill in the blanks. The endothilium functions to maintain _______ bloodflow and modulate _________ of substances across the wall into tissues | Smooth / diffusion |
| What are the three layers of large vessels? | innermost (intima), the media, and the (outermost) adventitia. |
| HDL and LDL are composed of what four molecular components? | Protein, phospholipid, triglyceride, cholesterol |
| what is the name of the droplet that carries lipid from the intestines to the bloodstream? | chylomicrons |
| t/f? hyperplastic arteriosclerosis occurs in long-term low-level hypertension | False: hyperplastic arteriolosclerosis occurs in severe chronic hypertension. |
| Why do you suppose it is often challenging to maintain patients on hypertension medications? | because they have no symptoms from the disease. |
| many patients are anxious when waiting to see the doctor and find it a stressful experience. Will this influence the patient's blood pressure? | yes, stress can raise blood pressure |
| What percent of people with hypertension have an unknown cause (primary hypertension)? | 95% |
| What ancillary findings on blood or urine analyses might support a diagnosis of hypertension? | elevated BUN and creatinine in blood work and/or protein in the urine would support a diagnosis of hypertension. |
| a patient has a blood pressure of 135/80 on multiple visits to the doctor. Does she have hypertension? | No, she has prehypertension. True hypertension is defined as blood pressure of greater than 140 systolic or 90 diastolic. |
| t/f? non-controllable risk factors are more likely to change with lifestyle modifications. | False: controllable risk factors are more likely to change with lifestyle modifications. Noncontrollable risk factors are beyond an individual's ability to modify. |
| t/f? atherosclerosis is one of the three varieties of arteriosclerosis. | True: The other two types are arteriolosclerosis and Mönckeberg medial sclerosis. |
| list controllable risk factors for atherosclerosis | hyperlipidemia (including eating a high-fat diet), hypertension, cigarette smoking, and diabetes. |
| List uncontrollable risk factors for atherosclerosis | age, gender, genetics (ie: familial hypercholesterolemia) |
| what are some of the complications of atherosclerotic disease? | heart attack (myocardial infarct), stroke, aortic aneurysm/dissection, and peripheral arterial disease are complications of atherosclerosis. |
| what are the two most common causes of aneurysm? | hypertension and atherosclerosis. |
| what two genetic conditions can cause vascular dissection? | Ehlers Danlos and Marfan syndrome |
| t/f? Most vasculitis is infectious in origin | False: most vasculitis is autoimmune in origin. |
| Which systemic autoimmune vasculitis is treated differently from others? | Kawasaki, as it is treated with high-dose aspirin |
| Which vasculitis affects the small to medium-size arteries in the nose, throat, sinuses, lungs and kidneys of middle age men? | Wegener granulomatosis |
| Which vasculitis is responsible for painful ulcers of the fingers and toes in a smoker? | thromboangiitis obliterans (Buerger disease) causes painful ulcers and gangrene of the fingers and toes in young smokers. |
| t/f? raynaud syndrome is usually associated iwth autoimmune disease | false |
| t/f? thrombophlebitis is simply inflammation of the veins | false: thrombophlebitis is the formation of venous thrombi |
| what anatomic abnormality causes varicose veins? | incompetent valves |
| t/f? all kaposi's sarcoma is caused by infection with HIV and HHV8. | False: some are caused by immunodeficiency alone, while other variants may have a genetic component. (ie: chronic KS) |
| t/f? tumors of blood vessels can be benign or malignant | true. |
| what hormone is responsible for causing spider angiomas | estrogen |
| in what cells of the blood vessel do angiosarcomas commonly occur | angiosarcomas commonly develop in the endothelial cells. |