chemistry
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Glucose | 70-110
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Glucose | Diabetes, Stress, Corticosteroids
Critical high > 400 critical low < 50
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Hemoglobin A1C | 2.5 – 5.9%
Best control
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Hemoglobin A1C | Indicates Blood Sugar control or past 2- 3 month period
Fair control - 6-8% Poor control - > 8
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Blood Urea Nitrogen (BUN) | 10-20
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Blood Urea Nitrogen (BUN) | ↑ in renal or liver disease & dehydration
Critical high > 100
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Sodium | 136-145
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Sodium | Balances intravascular fluids: ↑ in dehydration; ↓ in hypervolemia
Critical high > 160; Critical low < 120
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Potassium | 3.5 – 5.3
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Potassium | Narrow range in blood: too high or too low → cardiac dysrhythmias & arrest Critical high > 6.5 Critical low < 2.5
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Chloride | 98 - 106
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Chloride | ↑ with excess IV NS; ↓ with NA & K losses
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CO2 | 23 - 30
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CO2 | Another determinant of metabolic acid base state:
↑ = alkalosis, ↓ = acidosis
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Creatinine | 0.5 - 1.2
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Creatinine | Increased in kidney impairment
Critical high > 4
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Total Bilirubin | < 1
Critical value > 12
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Total Bilirubin | If abn → test direct & indirect
↑ liver diseases → jaundice; ↓ Fe deficient anemia
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Calcium | 8.8 - 10.8
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Calcium | Narrow range in blood ; elevated with diuretic use &hyperparathyroidism.
↑ excess demineralization of bone; ↓ → tetany
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Total Protein | 6.3 – 8.4
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Total Protein | ↑ in dehydration, V&D; ↓ in malnutrition, liver & kidney disease
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Albumin | 3.5 - 5
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Albumin | ↑ in dehydration, V&D;
↓ in malnutrition, liver & kidney disease →3rd spacing & ascites
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Cholesterol | < 200
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Cholesterol | ↑ Atherosclerosis, uncontrolled DM, & AMI
↓ Hyperthyroidism, Cushing’s, malabsorption
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HDL | > 40 men
> 50 women
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HDL | ↑ indicates a decreased cardiac risk
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LDL | < 100
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LDL | ↑ indicates an increased cardiac risk
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Triglycerides | < 150
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Triglycerides | < 100 low risk of CVD; > 200 high risk of CVD
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CPK | 30 - 135
55 - 170
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CPK | Enzyme in heart & skeletal muscle
↑ Muscle damage or disease, AMI, & CVA
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LDH | 60 – 180 mg/dl
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LDH | Used to diagnose AMI:
↑ 12 – 24 hrs post MI peaks in 2-5 days and remains ↑ for 6-12 days
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Troponin | <0.01 ng/mL
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Troponin | Used to diagnose AMI with rising levels.
Decreasing values indicate recent cardiac injury.
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BNP | < 100 is desired
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BNP | Used to diagnose CHF; Severe CHF > 400
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AST/SGOT | 0 - 35
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AST/SGOT | Specific for liver damage: AST/ALT ratio distinguishes if heart or muscle
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ALT/ SGPT | 4 - 36
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ALT/ SGPT | Specific for liver damage; but also heart and muscle damage
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ALP | 30 - 120 IU/L
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ALP | Alkaline Phosphatase; high levels in hepatobiliary & bone diseases
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Lipase | 20-180
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Lipase | Enzyme secreted by Pancreas: ↑ acute pancreatic disorders
↓ late cancer of pancreas, hepatitis
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Amylase | 60 - 160
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Amylase | Enzyme secreted by Pancreas:↑ acute pancreatic disorders
↓ advanced chronic pancreatitis
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Ammonia | 15 – 45 Hesi
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Ammonia | Correlates with hepatic failure
10-80 mg/dl Hurst
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TSH | 0.3 – 3.0
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TSH | Thyroid stimulating Hormone High TSH is hypothyroid and Low TSH is hyperthyroid.
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