Energy, Water and Acid/Base balance Flashcards
What is ETF?
Thermic effect of food
energy expenditure associated with consumption, digestion, and absorption of food
What is AT?
Activity thermogenesis
energy expenditure associated with physical activity or daily movement
What is a major factor that affects REE?
Resting energy expenditure body composition (primary predictor of REE)
A tropical climate can increase BMR by how much?
5-20%
What factors can induce 7-15% increase in BMR?
caffeine, nicotine, and alcohol
Fever increases REE by what percentage above what degrees?
7%, 98.6 degrees F
What formula is used to calculate IBW? What is the equation?
Hamwi formula
men: 106 + 6lbs for each additional inch above 60 in
women 100 + 5lbs for each additional inch above 60 in
Formula to calculate IBW%
actual body wt/ IBW
What formula is used to calculate estimated energy needs? What is the equation?
Mifflin St. Jeor
Male: 10 (wt in kg) + 6.25 (ht in cm) - 5 (age in yrs) +5
Female: 10 (wt in kg) + 6.25 (ht in cm) - 5 (age in yrs) - 161
What are the monosaccharides?
Go Fruits Go!
Galactose, fructose, glucose (dextrose)
energy source
What are the disaccharides?
transport form
Small, Medium, Large
Sucrose, Maltose, Lactose
What are the polysaccharides?
storage form
Can Get Stored!
Cellulose, Glycogen, Starch
What are the sensible water losses?
urine and feces
What are the insensible water losses and how much does the body lose this way?
lungs (respiration) and skin surface (water vapor)
loses 0.8-1.2 L of water
water recommendation for athletes
1-1.25 L of fluid for each 1kg of body wt lost during exercise
This hormone increases water reabsorption in the kidneys which increases blood pressure
antidiuretic hormone (vasopressin)
which hormone regulates sodium and water in the body (affecting blood pressure)?
aldosterone
Which hormone increases blood pressure (increases aldosterone biosynthesis and renal function)?
Angiotensin II
Which hormone is a steroid that helps to maintain blood pressure, immune function, and anti-inflammatory processes?
cortisol
What hormone increases heart rate and blood pressure, acts as a stress hormone and neurotransmitter, and triggers the release of glucose into the blood?
norepinephrine
What hormone increases heart rate, muscle strength, and blood pressure?
epinephrine
1 contributor to endogenous acid production
the more protein in the diet, the more acid production
sulfur containing amino acids (methionine, cysteine, homocysteine) yield sulfuric acid
What does hypercapnia refer to? What are some causes?
increased CO2 retention which makes body more acidic?
COPD, anesthesia, overfeeding (causes pt to generate more CO2 because it’s made from macronutrients)
When does hypocapnia occur? What causes it?
decrease CO2 in bloodstream; hyperventilation
high altitudes, extreme anxiety, excessive ventilation by mechanical ventilators, certain types of lung disease
What causes metabolic acidosis occur?
- diarrhea (loss of bicarb from below stomach) (most common)
- ex: SBS, fistula, colostomy, ileostomy - problem in metabolism
- lactic acidosis d/t extreme exercise
- ketoacidosis - addition of toxins
- renal problems