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Protein Status. Anthropometric Biochemical Clinical physical exam medication information Dietary. Protein Status. Clinical physical exam. McClaren 41. Hair is dull, dry, lacks lustre. Kwashiorkor and marasmus. McClaren 42. ‘Flag-sign’ of marasmus and kwashiorkor.
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Protein Status • Anthropometric • Biochemical • Clinical • physical exam • medication information • Dietary
Protein Status • Clinical • physical exam
McClaren 41. Hair is dull, dry, lacks lustre. Kwashiorkor and marasmus.
McClaren 40. Moon face of kwashiokor.
Protein Status • Two compartment model • somatic protein is muscle • visceral protein is organs, RBC, lymphocytes, serum proteins
Protein Status • Somatic protein stores • Arm muscle circumference • Arm muscle area • Gender and age specific
Protein Status • Visceral protein • organs • rbc • granulocytes • lymphyocytes • serum proteins
Protein Status • Guidelines interpreting AMA • <5th percentile = wasted, no muscle stores • 5th to <15th = below average • >15th to <85th =average • >85th to <95th = above average • >95th = high muscle
Protein Status • Somatic protein stores • 30% total body protein • Visceral protein stores • 50% total body protein
Protein Status • Visceral protein stores • Albumin • 3.5 - 5.0 g/dL or 35 - 50 g/L • Half-life is 14 - 21 days
Protein Status • Alb • Responds slowly to nutritional repletion • Poor indicator of nutritional support in acute care • Better for initial assessment
Protein Status • Prealbumin, thyroxine-binding pre-albumin, transthyretin • 20 - 50 mg/dL • Half-life is 2 to 3 days
Protein Status • Prealbumin • More sensitive measuring nutritional therapy • Decreased in trauma and infection
Protein Status • TLC • Protein malnutrition causes decrease in TLC • Do not use in immunocompromised pt.
Protein Status • CBC with differential count • WBC X %lymphocytes • 12,300 X .25 = 3,075 cells/mm3
Protein Status • Normal WBC • 4,500 - 11,000 cells/mm3 • Normal %lymphocytes • 20 - 40% • Normal TLC • 2,000 cells/mm3
Protein Status • TLC • severe delpletion is < 800 cells/mm3 • moderate is 800 - 1199 cells/mm3 • mild is 1,200 - 1,800 cells/mm3
Protein Status • TLC • Practice looking at a CBC form
Protein Energy Malnutrition • No risk • Alb >3.2 g/dL • Prealb >17 mg/dL • Moderate risk • Alb 2.5 - 3.2 g/dL • Prealb 10 to 17 mg/dL
PEM • Severe risk • Alb <2.5 g/dL • Prealb <10 mg/dL
PEM • Using Alb and weight loss • Criteria grid, Funk & Ayton, JADA, 1995
Criteria grid for determining malnutrition dx. Funk & Ayton, JADA, 1995
PEM • Using Diagnostic Related Groups of the International Disease Classification system
PEM • Case 1 • wt is 75% of wt/ht • Alb 4.0 g/dL • Case 2 • wt is 93% of wt/ht • TLC 1,000 cells/mm3
PEM • Case 3 • wt is 80% of wt/ht • Alb 3.0 g/dL
Summary Protein Status • Somatic protein • Visceral protein • Dietary intake • Physical exam or clinical • Anthropometrics
END • Questions on protein status?