PRE-TEST

Ostwald-Folin Pipette

Glass pipette with an oval bulb near the tip, used for viscous fluids

Air Displacement Pipette

Integrated with a piston

Shift

Represents six or more consecutive control values on one side of the mean

Gauge 21

Standard venipuncture needle for routine venipuncture on adult patients

Ambient Temperature, Altitude

Environmental factors affecting evacuated tube draw volume

Calcium, Albumin

Analytes that become elevated when a patient changes position suddenly before blood collection

10% Solution

Made by mixing 10mL bleach with 90mL water

Fasting and 2 Hours

Times for measuring plasma glucose levels during OGTT

α-fetoprotein

Produced by embryonic hepatocytes and fetal yolk sac cells

Elevated BUN

Usually accompanies elevated creatinine values

Absorbance at 340nm

Base measurement for glucose determination

Control Solution

Contains analytes with known target values, used to monitor analytical performance

Acetic Anhydride/Sulfuric Acid

Reagents for color development in the Liebermann-Burchard reaction for cholesterol

Multiple Myeloma

Yields high serum total protein and low serum albumin

Enzymatic-UV

Specific method for uric acid measurement

Type 4 Hyperlipoproteinemia

Consistent with hypertriglyceridemia and increased pre-betalipoprotein fraction

>240mg/dL

Cholesterol values associated with high-risk CHD in adults aged 30-39

Heparin

Most commonly used anticoagulant for clinical chemistry tests

LDL

Directly estimated by measuring plasma Apo B-100 concentration

Lp(a)

Associated with increased risk for MI and stroke

Precipitating Agents

Used to remove VLDL and LDL from serum for HDL cholesterol measurement

Uric Acid

Causes reduction of phosphotungstic acid to a tungsten blue complex

B-type Natriuretic Peptide

Marker for congestive heart failure

Hepatic Cirrhosis

Characterized by beta-y bridge in serum protein electrophoresis

3%

Allowable coefficient of variation for total cholesterol

2mg/dL/h

Rate of glucose metabolism in an unpreserved sample at refrigerator temperature

50% Methanol

Reagent in the Evelyn-Malloy method for unconjugated bilirubin solubilization

Nelson-Somogyi

Method using arsenomolybdic acid as an oxidizing agent

Apoprotein A-1

Inversely related to risk of CHD

Potassium

Electrolyte with the most narrow reference range

Ca, Mg, K

Electrolytes involved in neuromuscular excitability

Lyase

Enzyme classification of aldolase

Testosterone

Most potent androgen

Excess CO2

Characterizes respiratory acidosis

GGT

Useful in establishing hepatic origin of elevated serum ALP

Freezing Point Depression

Used to determine osmolality by clinical osmometers

Chloride

Major extracellular anion

TBG

Major binding protein for thyroxine

Alcoholic Liver Disease

Associated with high serum GGT

Sodium

Decreases when determined by indirect ISE in lipemic serum