Nutrition Flashcards
How do you calculate BMI?
weight in kg / square of the height in meters
Cessation of breathing for periods lasting longer than 10 seconds during sleep
OSA
What physiologic changes occur from OSA?
arterial hypoxemia & hypercarbia, polycythemia, systemic HTN, PHTN, & RVF
Characterized by nocturnal episodes of central apnea (apnea w/o respiratory efforts), reflecting progressive desensitization of the respiratory center to nocturnal hypercarbia
obesity hypoventilation syndrome
Characterized by obesity, daytime hyper somnolence, hypoxemia, hypercarbia, polycythemia, respiratory acidosis, pulmonary HTN, an RVF
Pickwickian syndrome
What is the most clinically useful approach to calculate the initial dose of a drug to be injected into an obese pt?
base on lean body wt rather than total body weight
Albumin concentration below ___ is suggestive of malnutrition
3g/dL