biochem 1: all reference intervals

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50 Terms

1
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hemoglobin wavelength

415 nm

2
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bilirubin wavelength

454 nm

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lipemia wavelength

700 nm

4
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total protein

6-8 g/dL

*higher in neonates

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albumin

3.5-5 g/dL

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globulin

2.5-3 g/dL

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urine protein

1-14 mg/dL OR <100 mg/24 hrs

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CSF protein

15-45 mg/dL

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serum sodium

135-145 mEq/L

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serum potassium

3.5-5 mEq/L

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serum chloride

100-110 mEq/L

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tCO2

21-31 mEq/L

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sodium critical action values

  • less than 120

  • greater than 160

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potassium critical action value

  • less than 3

  • greater than 6.1

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tCO2 critical action values

  • less than 15

  • greater than 40

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serum osmolality

280-300 mOsmol/kg

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anion gap

10-20

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urine osmolality

50-1200 mOsmol/kg

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specific gravity

1.003-1.035

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normal random urine pH

5-8

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normal first morning urine pH

5-6

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renal threshold for glucose

160-180

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normal urine formation

1200-1500 mL/day

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blood urea nitrogen

6-20

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creatinine

0.5-1.5 mg/dL

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BUN:creatinine ratio

10:1 or 20:1

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pH range

7.35-7.45

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optimal pH

7.4

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pO2/paO2

80-100 mm Hg (on room air)

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pCO2/paCO2

35-45 mm Hg (on room air)

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HCO3

22-26 mEq/L

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base excess

-2-2 mEq/L

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percent oxygen saturation (pulse ox)

95-100%

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total serum calcium

8.5-10.5 mg/dL

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total serum calcium critical action values

  • less than 6

  • greater than 13

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free ionized calcium

4.6-5.3 mg/dL

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free ionized calcium critical action values

  • less than 0.9 mmol/L

  • greater than 1.55 mmol/L

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phosphate

2.5-4.5 mg/dL

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phosphate critical action value

less than 1

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magnesium

1.7-2.4

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magnesium critical action value

  • less than 1.0

  • greater than 4.0

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hypoglycemia

below 50 mg/dL

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normal fasting plasma glucose

74-99 mg/dL

44
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diagnostic criteria for DM

  • FPG: >126 mg/dL

  • 2 hour plasma glucose (OGTT): >200 mg/dL

  • A1C: >6.5%

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DKA plasma glucose

>250 mg/dL

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hyperglycemic/hyperosmolar syndrome (HHS)

>600 mg/dL

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diagnostic criteria for gestational diabetes

  • FPG: >92,<126 mg/dL

  • 1 hour glucose: >180 mg/dL

  • 2 hour glucose: >153

    *only need one for diagnosis

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pre diabetes criteria

  • FPG: 100-125 mg/dL

  • 2 hour OGTT: 140-199 mg/dL

  • A1C: 5.7-6.4%

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normal A1C

>5.7%

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osmolal gap

less than 10