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Acid Base Disorders - Formulas for appropriate metabolic and respiratory compensation

- Dr Amith Sreedharan - Consultant
Acid Base Disorders ... - Formulas for ... #Compensation #Formula ... Winters #Diagnosis #Nephrology ... #AcidBase
To improve the usefulness of the serum creatinine concentration as a marker of kidney function, prediction
predict GFR, these formulas ... commonly used formulas ... Neither formula ... #Diagnosis #Nephrology ... #Calculation #Formulas
Table 1. Equations for estimated glomerular filtration rate (eGFR) in adults based on serum creatinine concentration*.
#Diagnosis
eGFR) in adults based ... on serum creatinine ... #Diagnosis #Nephrology ... #Calculation #Formulas ... #Creatinine #Clearance
Prediction of Compensatory Responses on Simple Acid-Base Disturbances

#acidbase #compensation #metabolic #respiratory #diagnosis #calculations #formulas #acidosis #alkalosis
on Simple Acid-Base ... Disturbances #acidbase ... #calculations #formulas
Acid-Base Disorders - Expected Compensation Equations

Metabolic Acidosis:
 • pCO2 = 1.5 x HCO3 + 8 ±
Acid-Base Disorders ... ± 2 (Winter’s formula ... ↓ 4 #Acid #Base ... #AcidBase #Disorders
Algorithm - Approach to the differential diagnosis of the patient presenting with overt glomerular proteinuria. CMV
Algorithm - Approach ... 1.0 g/ days in a collection ... based on its creatinine ... #Algorithm #differential ... nephrotic #syndrome #nephrology
Hypokalemia Diagnostic Algorithm
To assess potassium excretion: perform 24-hour urine collection or alternatively obtain potassium-to-creatinine ratio on
Hypokalemia Diagnostic Algorithm ... 24-hour urine collection ... obtain potassium-to-creatinine ... Hypokalemia #Diagnosis #Algorithm ... #TTKG #nephrology
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
systematic error Correlation ... perfect positive correlation ... perfect negative correlation ... , 0 = no correlation ... Biostatistics #formulas
Pragmatic diagnostic algorithm for hypokalemia. 
***Typical presentations: 
 • Vomiting: urine Na/Cl > 1.6, low urine
Pragmatic diagnostic algorithm ... Tubulopathy: urine K/creatinine ... Ideally, after correcting ... #differential #algorithm ... #nephrology