Dr. Gerald Diaz @GeraldMD
49.9M 14.4K 7.6K
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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Causes of Fat Malabsorption - Differential Diagnosis
Biliary Duct Obstruction
 β€’ Autoimmuneβ€” PBC, PSC
 β€’ Infectionβ€” liver
Causes of Fat Malabsorption ... choledocho/ithiasis Intestinal ... Celiac disease β€’ IBD ... length β€’ Short bowel ... Differential #Diagnosis #Causes
Upper and Lower Causes of GI Bleed
Upper:
 β€’ Esophagus: Tear (Mallory Weiss, Boerhaave syndrome), Variceal, Esophagitis,
Upper and Lower Causes ... fistula Lower: β€’ Bowel ... colitis, UC/Chrons (IBD ... differential #diagnosis #Causes ... #algorithm
TABLE 2. Irritable bowel syndrome (IBS) sub-classifications
lBS-diarrhoea (IBS-D)
 - >25% loose or watery stools; <25% hard
Irritable bowel ... (IBS-D) - >25% ... (IBS-C) - >25% ... of incomplete evacuation ... #Classes #Diagnosis
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Algorithm Before ... life threatening complications ... hypokalemia is ... wasting from other causes ... suggests extra-renal causes
Algorithm for the evaluation of macrocytic anemia. (RBC = red blood cell; MMA = methylmalonic acid.)
Physicians
Algorithm for the ... evaluation of macrocytic ... the most likely cause ... recovery also causes ... #Workup #AAFP
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 β€’ Vit B12 - aka cobalamin. Present in foods derived from animal
β€’ Common Causes ... disorders of small intestine ... diarrhea related to IBD ... total body stores Evaluation ... bariatric, gastric, intestinal
Complications after Bariatric Surgery
Post Bariatric Intestinal Failure:
 β€’ Severe protein malnutrition after bariatric surgery
 β€’ More
Complications after ... Post Bariatric Intestinal ... bolus to the small bowel ... (N/V bloating, abd ... Gastric bypass causes
Handlebar Traumatic Injury 
Young girl presents to you after low energy, helmeted bicycle accident. Her vitals
abd w/contrast ... BAR INJURIES: classic ... in over 80% of cases ... injuries to the small bowel ... consultation, evaluation
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