nutritional assessment and micronutrients Flashcards
evaluation of a patient’s nutritional status based on subjective and objective clinical information
nutrition assessment
4 functions of nutrition assessment
- assess quality and quantity of intake
- determine if medical nutrition therapy or counseling is warranted
- evaluate effectiveness of nutritional interventions
- monitor changes in nutritional status
why are nutritional assessments important?
- obesity and malnourishment are common
- accurate nutritional assessment = better dx/tx
4 things to consider while taking medical history
- Medical Hx - full history of past and current health problems
- Medication Use - full list of prescription and OTC meds
- Family Hx - emphasis on conditions that affect or are affected by nutritional intake
- Social Hx - traditional place in the history where diet information is obtained
place where they live, who they live with, their income, their transportation, etc., that have a big impact on a pt’s food selection and preparation
socioeconomic factors
considered when taking social hx
what is retrospective questioning method
Ask the patient to write down everything consumed in the last 24 hours
what is prospective dietary evaluation
- Ask the patient to write down everything consumed daily, as they consume it
how does prospective dietary evaluation help mitigate recall bias and provide a more accurate estimation
- Requires greater patient compliance and later-date follow-up
- Longer log period = greater accuracy
BMI value for obese
+30
- A measure of risk in normal weight and overweight/obese patients
- Indicates excess fat in the abdominal area (visceral adipose tissue)
waist circumference
what are macronutrients
proteins, carbs, fats
what are micronutrients
dietary substances consumed in smaller amounts than macronutrients, but still essential to the body
- vitamins
- mineral
-essential AA
- essential FA
organic compounds required by the body for survival but generally not produced endogenously in sufficient amounts
vitamins
what are fat-soluble vitamins
- A, D, E, K
- excess intake is stored in fatty tissues
- Deficiency usually seen in fat malabsorption syndromes (bariatric surgery, GI illness)
what are water-soluble vitamins
- B complex and C
- generally widely available in foods, only limited storage in the body
- Deficiency usually seen in patients with poor nutritional intake or malabsorption
which vitamin class would patients have a higher chance of toxicity from?
fat-soluble
similar metabolic roles to vitamins, but have no known deficiency syndrome and/or are made endogenously
vitamin-like substances
Choline
Taurine
l-Carnitine
Inositol
Bioflavonoids
Alpha-Lipoic Acid
Coenzyme Q (CoQ)
role of thiamine (B1)
neuro metabolism*
glucose metabolism
antioxidant
who is usually deficient in thiamine (B1)
alcoholics*
poor diet/restricted diet
symptoms of deficiency of thiamine B1
Beriberi - classic syndrome of deficiency
- Wet beriberi - cardiovascular - heart failure, cardiomegaly, edema, ↑ HR, SOB (fluid retention)
- Dry beriberi - neurologic - symmetrical sensory and motor neuropathy - Includes Wernicke’s Encephalopathy and Korsakoff Syndrome
role of niacin B3
General metabolic processes throughout the body* - create NAD and NADP coenzymes, used for energy
who is usually deficient of niacin B3
alcoholics, anorexics, HIV*, malabsorption pts
Symptoms of deficiency of niacin B3
Pellagra - classic syndrome of deficiency
- “3 Ds” - photosensitive dermatitis*, diarrhea (with other GI symptoms), dementia (advanced)
role of pyridoxine B6
protein and neurotransmitter metabolism, gluconeogenesis
who is usually deficient of pyridoxine B6
- CKD, GI disease (IBD, celiac), autoimmune pts (kidney and gut problems)*
- meds: oral contraceptives*, anti-TB, theophylline, L-dopa
symptoms of deficiency of B6
anemia, dermatitis (including stomatitis), depression, seizures