3 causes of venous thrombosis also called, Virchow's Triad
Venous stasis, trauma/endothelial damage, hypercoagulability
Venous stasis
Slowed
... [Show More] blood flow in veins. Caused by immobility, myocardial infarction, CHF, hypotension, COPD, obesity, pregnancy, previous DVT, extrinsic compression, SVC syndrome, paraplegia, surgery associated conditions.
2 types of Trauma/endothelial damage
Intrinsic and extrinsic
Intrinsic trauma is
Damage to the vessel wall from intravenous drugs or a catheter. Increased use of PICC line results in higher incidence of upper extremity thrombus, usually developing at most proximal portion of PICC line.
Extrinsic trauma is
Damage caused by an accident, which can occur at any site of the body.
Hypercoagulability is associated with
Pregnancy, cancer, oral contraceptives and/or hormone replacement therapy, inherited states,e.g., factor V Leiden or protein C, protein S, or Antithrombin III deficiency
Sensitivity, and
How to calculate?
-Ability of a test to detect disease, how many tests are correctly called positive.
- # of true positives divided by # of all positive tests by gold standard, or TP/TP+FN
Specificity, and how to calculate?
-Ability of a test to identify normality, or how many results were correctly called negative.
- # of true negative divided by # of all negative tests by gold standard, or TN/TN+FP
Positive predictive value, and how to calculate?
-percentage of test results that accurately predict abnormality, or what % correctly predicted disease.
- # of true positive test divided by # of all positive tests, or TP/TP+FP
Negative predictive value, and how to calculate?
- percentage of test results that accurately predict normality, or what % correctly predicted absence of disease.
- # of true negatives divided by # of all negative tests, or TN/TN+FN
Accuracy, and how to calculate?
- % of correct tests, or how well does the test both detect and rule out disease.
- total # of correct tests divided by total # of all tests, or TP+TN/TP+FP+FN+TN
Brachiocephalic/ Innominate vien formed from confluence of?
Subclavien and Internal jugular vein
Vascular disease more common in women?
Takayasu's arteritis-tennage to young women more common.
FMD- younger women.
Celiac band syndrome- young athletic women.
Vascular disease more common in men?
Obliteritis angitis(bergers disease)- younger <40 men, heavy smokers.
Popliteal artery entrapment syndrome- young athletic men.
Celiac artery supplies blood to what organs?
Stomach, liver, pancreas, duodenum, and spleen.
Celiac artery branches into?
Left gastric, splenic, common hepatic arteries.
SMA supplies blood to what organs?
Small intestine, cecum, ascending colon, part of transverse colon.
SMA location?
1cm distal to celiac artery.
IMA supplies what organs?
Left half of transverse colon, the descending, iliac, and sigmoid colon, and part of rectum
IMA arises from?
Distal abdominal aorta 3-4cm above aorti [Show Less]