Dr. Gerald Diaz @GeraldMD
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Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief 🇵🇭 🇺🇸 - 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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Nail diseases and disorders.
 - Spoon Nails (Koilonychia)
 - Pitting of Nails
 - Beau's Lines
 -
Leukonychia (white spots ... ) #Diagnosis # ... Fingernail #Disorders #Differential ... #Leukonychia #Table ... #Clinical #PhysicalExam
The RIGID patient: tetanus mimics
 - Serotonin Syndrome
 - Neuroleptic Malignant Sx
 - Malignant Hyperthermia
 -
- Serotonin Syndrome ... mimics #comparison #table ... rigid #patient #differential ... #diagnosis
Causes of Sudden Cardiac Arrest
Primary Myocardial Processes (> 90%):
 • Acquired structural heart disease: CAD, Most
Channelopathies: Long/short ... QT syndromes, Brugada ... Acquired long QT syndrome ... Arrest #cardiology #differential ... #diagnosis #causes
When trying to differentiate between the two conditions think “FAST” with Serotonin Syndrome and “SLOW” with
When trying to differentiate ... with Serotonin Syndrome ... Serotonin Syndrome ... resolution #Diagnosis ... NeurolepticMalignant #Comparison #Table
Costoclavicular Maneuver for Thoracic Outlet Syndrome

To perform the Costoclavicular Maneuver, draw the patient's shoulders inferiorly and
Maneuver for Thoracic Outlet ... Syndrome To ... syndrome. ... #PhysicalExam # ... clinical #video #sports
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
- Gitelman syndrome ... - Hungry bones syndrome ... Hypomagnesemia #Differential ... #Diagnosis #Low ... #Magnesium #Table
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
Hypokalemia - Differential ... Diagnosis Algorithm ... of hypokalemia starts ... #hypokalemia #differential ... #diagnosis #algorithm
Hypermagnesemia - Etiologies by Mechanism
Renal Failure 
Excessive Mg Administration 
 - Massive PO intake
- Tumor lysis syndrome ... Hypermagnesemia #Differential ... #Diagnosis #High ... #Magnesium #Table
Hyperaldosteronism - Etiologies of Mineralocorticoid Excess

Primary Hyperaldosteronism (Normal or Low Renin, High Aldosterone) 
 - Aldosterone-secreting
- Cushing’s syndrome ... Hyperaldosteronism #Differential ... #Diagnosis #Renin ... Aldosterone #Comparison #Table
Roos' Test for Thoracic Outlet Syndrome

To perform the Roos' Test abduct the shoulders to 90 degrees,
Test for Thoracic Outlet ... Syndrome To ... syndrome. ... #Syndrome #PhysicalExam ... #orthopedics #sports