Clinical Chemistry (MLS)
Panic Values: correct answers -NA <120 and >160
-K <2.5 and >6.5 (HEM,NB >6.5)
-CO2 <10 and >20
-Glu <40 and >500 (NB >300)
-Ca <6.0 and >13.0
-Phos <1.0 and >10.0
-Mg <1.0 and >8.0
-TBIL NB >18.0
-NBIL NB >18.0
-LITH >1.5
-SALI >30.0
Red stopper tube or gold correct answers -clotting substance is silicon coating
Mottled gray/red tube correct answers -30 minute clot with a silicon coating
Gray stopper tube correct answers -sodium fluoride; slows down glycolysis
-lactic acid and glucose
Green stopper tube correct answers -lithium heparin - chemistry
-sodium heparin - send out tests
Lavender (purple) stopper tube correct answers -KEDTA - hematology or blood bank
- not for chemistry because will increase K and NA and chelate Ca
Royal blue stopper tube correct answers -two types: EDTA and one without
-used for trace element study: Cu, lead, etc.
Yellow stopper tube correct answers -anticoagulant is ACD; used for sterile specimens
Lactic acid correct answers -whole blood (heparin); ran within 15 minutes; plasma
(fluoride oxalate tubes - gray) on ice
Ammonia correct answers -on ice; ran within 20 minutes; Plasma (EDTA or Heparin)
with no hemolysis
Alcohol correct answers -whole blood; serum, plasma, urine; do not use alcohol to
cleanse the site; refrigerate in closed top - alcohol can evaporate
Ketone (acetone) correct answers -serum, urine, plasma, or whole blood
-no hemolysis
-fresh samples that are performed within 30 mins after the sample has been opened
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