A. Screening and Assessment Flashcards
Screening tools include _______, ______, and _____.
Subjective Global Assessment, Mini Nutritional Assessment, and Nutrition Screening Initiative
Nutrition screening tool evaluating PMH, intake, GI symptoms, functional capacity, physical appearance, edema, weight change. Involves physical examination
Subjective Global Assessment
Nutrition screening tool evaluating independence, medications, number of meals consumed/day, protein intake, fruit and vegetable intake, and mode of feeding.
Mini Nutritional Assessment
Nutrition screening tool for the elderly.
Nutrition Screening Initiative
3 components of the nutrition assessment are:
Review, Cluster, and Identify
Review data for factors that affect nutritional health an status
Review
Assessment data clustered for comparison with characteristics of a suspected diagnosis
Cluster
Indicators are compared to identified standards for interpretation
Identify
Dietary intake assessment
Present patterns of eating. (do not ask leading questions i.e. You eat 3 servings of vegetables/d don’t you?)
Diet history
Journal kept by the patient recording everything eaten in given period of time
Food record (journal)
Client relays from memory their intake over past day. Produces best information when dietitian is involved to clarify exact types and amounts of foods consumed. Best for clinical setting.
24-hour recall
Asks how often client eats certain foods. Quick way of obtaining intake information from large groups. Dietitian assist not needed. Works well in community setting.
Food frequency questionnaire
Measures body fat reserves.
Standard-
Male: 12.5 cm
Female: 16.5 cm
Triceps skinfold thickness (TSF)
Measures skeletal muscle mass. *Indicator of somatic protein. Important to measure in growing children as it is useful in identifying protein-energy malnutrition.
Standard-
Male: 25.3 cm
Female: 23.2 cm
Arm muscle area (AMA)
Compares weight to height.
*Healthy adult: 18.5-24.9.
Body mass index (BMI)
Independent risk factor for disease when out of proportion to total body fat. (
Waist circumference
Differentiates between android (apple) and gynoid (pear) obesity.
*Value >1.0 (males) or 0.8 (females) indicative of android obesity and increased risk for obesity-related diseases.
Waist/hip ratio (WHR)
Thin, sparse, dry and brittle hair may indicate deficiencies in:
Vitamin C or Protein
Easily pluckable hair may indicate deficiencies in:
Protein
Pale, dry eyes and poor vision may indicate deficiencies in:
Vitamin A, Zinc, or Riboflavin
Swollen, red, cry, and cracked lips may indicate deficiencies in:
Riboflavin, Pyridoxine, or Niacin
Smooth, slick, purple tongue with white coating may indicate deficiencies in:
Iron, or vitamins
Sore, red, swollen, bleeding gums may indicate deficiency in:
Vitamin C
Missing teeth or loss of enamel may indicate deficiency in:
Calcium
Pale, dry, and scaly skin may indicate deficiencies in:
Iron, Folate, or Zinc
Brittle, thin, spoon-shaped nails may indicate deficiencies in:
Iron or Protein
This visceral proteins’ major function is to maintain colloidal osmotic pressure. It has a long half-life, so does not reflect current protein intake.
Albumin
Normal: 3.5-5 g/dl
This visceral protein transports iron to the bone marrow for the production of hemoglobin. It’s level is controlled by the iron storage pool - synthesis increases when iron stores decrease. Therefore, an increase in this lab value is indicative of anemia.
Transferrin
This visceral protein has a short half-life of 2-3 days. It picks up changes in protein status quickly, and is considered the *best visceral protein to evaluate nutritional status. This value decreases in inflammation, as the liver synthesizes CRP at its expense.
Prealbumin
(Normal: 16-40 mg/dL)
This protein binds and transports retinol. It has the shortest half-life of 12 hours.
Retinol-binding protein
______ and _____ together evaluate iron status. _____ measures the volume of RBCs compared to the total blood volume. ______ is the protein contained in red blood cells that is responsible for delivery of oxygen to the tissues. It is the iron-containing pigment of RBCs.
Hematocrit, Hemoglobin
Hematocrit, Hemoglobin
Indicates size of iron storage pool (amt of storage iron).
Ferritin
This value is related to muscle mass and measures somatic protein. It is released by the muscle and excreted by the kidney. The value alone measures somatic protein. In combination with BUN, assesses kidney function.
Creatinine
(Normal: 0.6-1.4 mg/dL)
The ratio of creatinine excreted in 24 hours to height. This value estimates lean body mass and measures somatic protein.
Creatinine height index
This value is related to protein status and renal function. It is related to protein intake, and is an indicator of renal disease.
*A renal patient should keep this value under 100.
Blood urea nitrogen (BUN)
(Normal: 10-20 mg/dL)
*Renal patient
Assesses renal function. Compares the creatinine level in urine with the creatinine level in blood.
Creatinine clearance
Measures immunocompetency. Decreased in protein-energy malnutrition
Total lymphocyte count (TLC)
This acute-phase protein is a marker of acute inflammatory stress. As this value declines, it indicates when nutrition therapy would be most beneficial. Increases with inflammation. Once elevated value begins to decrease, Prealbumin increases.
C-Reactive Protein (CRP)
Detects lead poisoning. Lead depletes iron, leading to anemia. Lead also displaces calcium in the bone, leading to a zinc deficiency. (calcium x zinc)
Free erythrocyte protoporphyrin (FEP)
Evaluates blood clotting. Anticoagulants prolong this time, alteration in vitamin K intake will also alter this rate.
Prothrombin time (PT)
Activity Factors
Sedentary: BEE x ___
Active: BEE x ___
Stressed: BEE x ___
Sedentary: BEE x 1.2
Active: BEE x 1.3
Stressed: BEE x 1.5