MEDL 279 Chemistry Review Part I

Which color top tube is used for most serum tests?

• Red or Yellow top tubes

• Blue top tubes

• Green top tubes

• Purple top tubes

Which tube is used for ammonia and blood gases and must be received in the lab on ice?

• Green top Heparin tube

• Red top tube

• Blue top Citrate tube

• Yellow top SPS tube

What is the purpose of the sodium fluoride gray top tube?

• Glucose testing

• For liver function tests

• For coagulation studies

• For blood typing

What effect does hemolysis have on potassium (K+) levels in a blood sample?

• A false increase in K+

• A false decrease in K+

• No effect on K+ levels

• A true decrease in K+

Tags

NGSS.HS-LS1-3

What is the fasting range for blood glucose?

• 70-110 mg/dL

• 120-160 mg/dL

• 40-60 mg/dL

• 150-200 mg/dL

Which hormone decreases serum glucose and stimulates uptake by cells?

• Insulin

• Glucagon

• Cortisol

• Adrenaline

Tags

NGSS.HS-LS1-3

Which hormone increases glucose and stimulates gluconeogenesis?

• Cortisol

• T3 & T4

• Insulin

• Glucagon

Which hormones increase glucose and stimulate glycogenolysis?

• Cortisol

• T3 & T4

• Insulin

• Glucagon

Tags

NGSS.HS-LS1-3

OGTT testing of a standard 75g dose, with a result of >200 mg/dL is diagnostic of which disease?

• Hypertension

• Diabetes Mellitus

• Hyperthyroidism

• Anemia

Which enzyme is most sensitive and often used as a reference method for glucose measurement?

• Glucose oxidase

• Hexokinase

• Amylase

• Lipase