CORRECT ANSWERS
(LMWH) Low molecular weight heparin therapy is monitored by:
- ANSWERS-Anti-Xa assay
A change in the expression of D antigen is called _____.
- ANSWERS-Partial D
ALP is elevated in:
- ANSWERS-1. bile duct obstruction (gallstone)
2. Cirrhosis
3. Hepatic tumors
4. ALT/AST>ALP-->hepatitis
APTT measures which factors?
- ANSWERS-Intrinsic: 8, 9, 11, 12, prekallikrein
Common: 1, II, V, X
associated with prolonged vomiting
- ANSWERS-Metabolic Alkalosis (Cl- loss so HCO3- retention)
Associated with severe diarrhea:
- ANSWERS-Metabolic Acidosis-losing bicarb..also associated with salicylate poisoning and diabetic
ketoacidosis
Bacitracin test can also be used to differentiate:
- ANSWERS-bacitracin-resistant Staphylococcus from bacitracin-susceptible Micrococcus
Beer's Law states that:
- ANSWERS-absorbance is directly proportional to the concentration of substance in solution
, Blood negative on urine dipstick but RBCS seen under the scope causes:
- ANSWERS-False negative: Vitamin C and not mixing
Blood positive on urine dipstick but no RBCS seen under the scope causes:
- ANSWERS--Hypotonic and alkaline causes RBC lysis.
-Myoglobin
-Bleach
Citrate Positive and Negative examples.
- ANSWERS-Positive: Kleb. pneumo
Negative: E. coli
Conn's Syndrome effects:
- ANSWERS-Increased aldosterone= ++Na+ and BPand blood volume and decreased K+
Cushing's
- ANSWERS-
Disease associated with echinocytes? Artifact?
- ANSWERS-Uremia; didn't dry blood fast enough or completely
Donor Requirements:
- ANSWERS--Every 8 weeks (x2 if dbl unit) or >2 days after plateletpheresis
-pulse 50-100
-Temp </= 37.5C/99.5F
-Hgb/Hct: >/= 12.5, 38%
Auto >/= 11, 33%
Eosinophils in urine sediment indicate:
- ANSWERS-acute interstitial nephritis
Excessive antacid use causes:
- ANSWERS--Hypermagnesia