43 results
Fractional Excretion of Sodium - FENa
Fractional Excretion of Sodium (FENa) = (Urine Na+ x Serum Cr)
Sodium (FENa) = (Urine ... / (Serum Na+ x Urine ... > 2% suggests ATN ... #calculation #diagnosis
Urine Specific Gravity - Interpretation
Specific Gravity = Density of urine / Density of water
SG close to
Urine Specific Gravity ... Gravity = Density of urine ... resistance to ADH) • ATN ... EricsMedicalLectures/ #Urine ... Interpretation #diagnosis
Amyloidosis - Workup and Diagnostic Algorithm
 • Serum Immunofixation and Serum Free Light Chains
 • Biopsy
• Congo Red Diagnostic ... AL amyloidosis diagnosis ... marrow biopsy • Echocardiogram ... • Serum and urine ... IFE and 24-h urine
Increased Urination - Differential Diagnosis Framework - Increased Volume / Frequency
 • Increased osmotic load (Increased
- Differential Diagnosis ... load (Increased urine ... (usually low urine ... Recovery phase of ATN ... #Differential #Diagnosis
D-Sign on Ultrasound
Right Ventricular Pressure vs Volume Overload
Eccentricity Index (EI) = D2/D1
RV Overload “D Sign” EI
D-Sign on Ultrasound ... Pocus101 #DSign #Ultrasound ... #echocardiogram ... #psax #diagnosis
Guide to Acute Kidney Injury (AKI)

What to ask/look for: 
 - HPI, PMH, full ROS
UOP/weights - Urine ... Liano 1996) - ATN ... CKD— 13% (mostly ATN ... AKI #Nephrology #Diagnosis
POCUS Reference Measurements
 • Gallbladder
 • Urinary Bladder
 • GI Tract
 • Pregnancy
 • Optic Nerve
#Measurements #Ultrasound ... #Echocardiogram ... #Diagnosis
POCUS Pearls for Tamponade
- Pericardial Effusion
- Diastolic Right Ventricular Collapse
- Systolic Right Atrial Collapse
- Plethoric Inferior
Tamponade #POCUS #Diagnosis ... Cardiology #Effusion #Echocardiogram ... #Ultrasound
Urine Microscopy - Casts
Acellular Casts
 • Hyaline Casts - Consists of only precipitated Tamm-Horsfell protein without
Urine Microscopy ... tubular necrosis (ATN ... EricsMedicalLectures/ #Casts #Urine ... interpretation #diagnosis
LVOTO due to SAM on POCUS Echocardiogram

Septic patient after IV fluids and initiation of Levophed. Worsening
to SAM on POCUS Echocardiogram ... Diagnosis? ... #HOCM #POCUS #Echocardiogram ... #ultrasound #Cardiology