ASCP BOC: Chemistry Study Guide Exam Questions and
Correct Answers| Guaranteed Pass
heparin (on ice)
-ammonia
-blood gases
-lactic acid
sodium fluoride (gray top)
-used for glucose (slows glycolysis)
-NOT for BUN (inhibits urease)
EDTA
-contains Na+ and K+
-chelates Ca2+ and causes false ↓
-contaminant
what increases when hemolysis occurs?
-"KLAMP"
,-K+
-LD
-ALD and ACP
-Mg2+
-PO4
glucose levels in whole blood
↓ 10 mg/dL per hour (7%)
fasting glucose reference range (serum or plasma)
70-99 mg/dL
relationship between CSF and plasma glucose levels
"normal" CSF values are 2/3 (60-65%) of plasma levels
insulin source and action
-pancreatic beta cells of Islets of Langerhans
,-↓ glucose
-stimulates glucose uptake by cells
glucagon source and action
-pancreatic alpha cells
-↑ glucose
-stimulates glycogenolysis (breakdown of glycogen→glucose)
ACTH source and action
-anterior pituitary
-↑ glucose
-insulin antagonist
growth hormone source and action
-anterior pituitary
-↑ glucose
-insulin antagonist
-acromegaly = hyperglycemia
cortisol source and action
-adrenal cortex
-↑ glucose
, -stimulates gluconeogenesis (glucose from non-CHO source)
human placental lactogen source and action
-placenta
-↑ glucose
-insulin antagonist
epinephrine source and action
-adrenal medulla
-↑ glucose
-stimulates glycogenolysis
T3 and T4 source and action
-thyroid gland
-stimulate glycogenolysis
hormones that increase serum glucose
-"GAG CHET"
-glucagon
Correct Answers| Guaranteed Pass
heparin (on ice)
-ammonia
-blood gases
-lactic acid
sodium fluoride (gray top)
-used for glucose (slows glycolysis)
-NOT for BUN (inhibits urease)
EDTA
-contains Na+ and K+
-chelates Ca2+ and causes false ↓
-contaminant
what increases when hemolysis occurs?
-"KLAMP"
,-K+
-LD
-ALD and ACP
-Mg2+
-PO4
glucose levels in whole blood
↓ 10 mg/dL per hour (7%)
fasting glucose reference range (serum or plasma)
70-99 mg/dL
relationship between CSF and plasma glucose levels
"normal" CSF values are 2/3 (60-65%) of plasma levels
insulin source and action
-pancreatic beta cells of Islets of Langerhans
,-↓ glucose
-stimulates glucose uptake by cells
glucagon source and action
-pancreatic alpha cells
-↑ glucose
-stimulates glycogenolysis (breakdown of glycogen→glucose)
ACTH source and action
-anterior pituitary
-↑ glucose
-insulin antagonist
growth hormone source and action
-anterior pituitary
-↑ glucose
-insulin antagonist
-acromegaly = hyperglycemia
cortisol source and action
-adrenal cortex
-↑ glucose
, -stimulates gluconeogenesis (glucose from non-CHO source)
human placental lactogen source and action
-placenta
-↑ glucose
-insulin antagonist
epinephrine source and action
-adrenal medulla
-↑ glucose
-stimulates glycogenolysis
T3 and T4 source and action
-thyroid gland
-stimulate glycogenolysis
hormones that increase serum glucose
-"GAG CHET"
-glucagon
