Dr. Gerald Diaz @GeraldMD
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Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief πŸ‡΅πŸ‡­ πŸ‡ΊπŸ‡Έ - Sign up for an account to like, bookmark and upload images to contribute to our community platform. Follow us on IG: https://www.instagram.com/grepmed/ | Twitter: https://twitter.com/grepmeded/
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Approach to Acid Base Disorders - Evaluation and Differential Diagnosis
1) Start with the Anion Gap (AG).
2)
Evaluation and Differential ... the chronicity (acute ... , chronic, or acute ... can be done by using ... Ketoacidosis, Renal
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 β€’ Kidney loss of Cl-
- Urinary Chloride ... poisoning Normal acid-base ... #Urinary #Chloride ... urine #Algorithm #nephrology ... #differential #
Acute Kidney Injury (AKI) - Differential Diagnosis Framework

PRE-Renal AKI:
 β€’ Hypovolemia
 β€’ Congestion
 β€’ Medications
 β€’
Acute Kidney Injury ... (AKI) - Differential ... Congestion β€’ Medications ... AKI: β€’ Urinary ... Diagnosis #nephrology
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Acid Base Disorders ... Acute or chronic ... Compensation, Acute ... acetaminophen dosing ... bloodgas #Acid #Base
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 β€’ Decreased GI Absorption: Chronic Diarrhea, Antacids,
Appropriately Low Kidney ... Refeeding Syndrome, Acute ... Respiratory Alkalosis ... β€’ N Vitamin D: Primary ... inhibitor, Estrogen based
Urinary Casts and Disease Associations
Hyaline - May be nonspecific; seen in normal individuals or during severe
individuals or during ... casts are seen in acute ... broad - Advanced kidney ... tubulointerstitial nephritis, renal ... #Casts #Differential
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
differentiating kidney ... suggests extra-renal ... - Metabolic Alkalosis ... - Metabolic acidosis ... diagnosis #Algorithm #differential
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
Hypophosphatemia - Differential ... paraproteinemia, acute ... resp. alkalosis ... FEPO4 β‰₯ 5% - Renal ... Denosumab, Estrogen based
Causes of Metabolic Alkalosis: Differential Diagnosis
ECF volume contracted: urine chloride concentration <20 meq/L
 β€’ Gastric alkalosis:
: Differential Diagnosis ... postchronic hypercapnia (acute ... chronic respiratory acidosis ... diuretics after renal ... #Differential #