53 results
Granular & “Muddy Brown” Casts on Urine Microscopy
A. Finely granular cast B. slightly coarser granular cast
“Muddy Brown” Casts ... on Urine Microscopy ... “urine poker quads ... appreciated at low ... #Urine #Microscopy
Causes of Nephrolithiasis - Differential Diagnosis Algorithm
Radio-opaque - Calcium-containing - 90% of stones
Radiolucent - Non-calcium 10%
Differential Diagnosis Algorithm ... - Non Calcium containing ... overproduction • Low ... solubility: • Low ... urine volume
Trichomonas on Urine Microscopy

Trichomonas organisms adjacent to mixed cellular cast containing WBC's, tubular epithelial cells, and
Trichomonas on Urine ... mixed cellular cast ... containing WBC's ... #Trichomonas #Urine
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
Hyponatremia Differential Algorithm ... uric acid: - Urine ... sodium low, uric ... and uric acid low ... #Differential #Algorithm
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Differential Diagnosis Algorithm ... Osmolarity 2) Urine ... Osmolarity 3) Urine ... Uric Acid - Low ... nephrology #sodium #low
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting, NGT
Differential Diagnosis Algorithm ... Urine Cl-: Vomiting ... , NGT suction, Low ... (late) • High Urine ... Differential #Diagnosis #Algorithm
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Differential Diagnosis Algorithm ... Urine Cl-: Vomiting ... , NGT suction, Low ... (late) • High Urine ... Differential #Diagnosis #Algorithm
Algorithm for patients with hypokalemia on the basis of the potassium-to-creatinine ratio in the urine
Urine K+
Algorithm for patients ... EABV, Low Plasma ... • Distal RTA Low-normal ... Plasma HCO3- • Low ... #differential #algorithm
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
and Diagnosis Algorithm ... WBCs, or urine ... → Urine culture ... proteinuria, RBC casts ... Hematuria #Diagnosis #Algorithm
Nephritic vs Nephrotic Syndrome

Step 1: If the patient has hematuria and/or proteinuria, think about nephrotic/nephritic syndromes.
Step
hematuria (RBC casts ... dysmorphic RBCs in urine ... Syndrome #Comparison #Algorithm