72 results
Guide to Acute Kidney Injury (AKI)

What to ask/look for: 
 - HPI, PMH, full ROS
- BMP, cap, CBC ... UOP/weights - Urine ... Liano 1996) - ATN ... CKD— 13% (mostly ATN ... AKI #Nephrology #Diagnosis
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 ... • Serum and urine ... IFE and 24-h urine ... spectrometry) • CBC
Purple Urine Bag Syndrome
Chronic, indwelling catheter + bacteriuria (Providencia, Klebsiella, E.coli*) + alkaline urine
Tryptophan → Indoxyl
Purple Urine Bag ... E.coli*) + alkaline urine ... BrighamChiefs #Purple #Urine ... Syndrome #PUBS #pathophysiology ... #differential #diagnosis
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Parainfluenza • CD4 ... ) Fungal: • CD4 ... Parasitic: • CD4 ... Cryptococcal Ag, Urine ... HIVAIDS #workup #diagnosis
Approach to Oliguria 
Oliguria (urine output <0.3-0.5 cc/kg IBW) 

- Dr. Josh Farkas @PulmCrit

#Oliguria #Diagnosis #Management
Oliguria Oliguria (urine ... output <0.3-0.5 cc ... #Oliguria #Diagnosis
Approach to Thrombotic Microangiopathy (TMA) - Differential Diagnosis and Management Algorithm

Suspected TMA: Unexplained thrombocytopenia + MAHA
- Differential Diagnosis ... Initial labs: CBC ... Haptoglobin, LDH, Urine ... Haptoglobin • ↑ Urine ... #Differential #Diagnosis
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
Cerebral Salt Wasting vs SIADH - Pathophysiology 
1) Neurological event
2) Sodium loss from tubules
3) Naturiesis →
Wasting vs SIADH - Pathophysiology ... → Increased urine ... SaltWasting #SIADH #Pathophysiology ... #diagnosis #nephrology