Basal metabolic rate
Basal metabolic rate
Category CCC
The LITFL Critical Care Compendium is a comprehensive collection of pages concisely covering the core topics and controversies of critical care.
Cachexia
Cachexia refers to weight loss and skeletal muscle wasting due to illness where the body does not reduce catabolism (unlike the adaptive reduction in protein metabolism that occurs in starvation). Mechanisms not clearly understood
Daily Nutritional Requirements
Daily Nutritional Requirements
Poor Nutrition in ICU
Poor Nutrition in ICU: the establishment of enteral feeding is considered an important goal
Systemic Lupus Erythematosus
Systemic Lupus Erythematosus (SLE) = chronic, multi-system disease commonest in young females; wide spread antibodies -> produce tissue damage
Scleroderma
Scleroderma = autoimmune mediated widespread collagenous deposition. Limited form: Calcinosis, Raynauds, Esophageal dysfunction, Sclerodacytaly and Telangiectasia (CREST syndrome)
Polyangiitis – MPA, GPA, EGPA
Polyangiitis - MPA, GPA, EGPA: similar but different diseases; positive Antineutrophil cytopasmic antibiodies (ANCA); renal histology (focal necrotizing, pauci-immune glomerulonephritis)
Pulmonary Artery Catheter
Pulmonary Artery Catheter aka Swan-Ganz catheter (or 'the yellow snake'); continuous cardiac output monitoring; pulmonary artery pressure and more...
Lactate Clearance versus ScvO2 Monitoring in Severe Sepsis
Resuscitation targets in severe sepsis include: preload, e.g. CVP; afterload, e.g. MAP; tissue oxygen delivery; end point controversial: ScvO2 vs lactate clearance
Procalcitonin
Procalcitonin is the propeptide of calcitonin, a 116-peptide molecule with a molecular weight of 13 kDa. Procalcitonin has been studied as a sepsis biomarker, to help with diagnosing/ ruling out sepsis and to guide the initiation and cessation of antibiotics
Enteral Nutrition vs Parenteral Nutrition
Enteral Nutrition vs Parenteral Nutrition: controversial issue; at present best recommendations are to optimize oral/enteral nutrition, avoid forced starvation if at all possible, and judiciously use supplemental parenteral nutrition.
Folate Deficiency
Folate Deficiency: 500-20,000 mcg stored in body; required 50-100mcg/day; required for DNA, RNA and protein synthesis (purine, thymidine and amino acid synthesis)