1464 results
Hypophosphatemia Diagnostic Algorithm
- GI Losses
- Redistribution
- 1° HPT
- 1° Renal PO4 wasting: Hereditary, TIO, Fanconi Syndrome,
Hypophosphatemia #phosphorus ... #low #diagnosis
Pathophysiology of Tumor Lysis Syndrome (TLS)
Tumor Cell Lysis
-> Release of DNA
 • Purines -> Hypoxanthine /
-> Uric Acid (low ... excretion) • Phosphorus ... Urate Nephropathy (low
Fractional Excretion of Phosphate FEPO4
FEPO4 = Fractional Excretion of Phosphate (%) = [PO4 (Urine) * Creatinine
0.1 fraction) = low ... Phosphate #FEPO4 #phosphorus ... #nephrology #Phosphorus
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
absorption (Antacids, Phosphorus ... • Normal or Low ... - Normal or Low
Hypoalbuminemia and hypophosphatemia can mask an anion gap (particularly, low albumin states usually underestimate the anion
(particularly, low ... and add half the phosphorous
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 • Decreased GI Absorption: Chronic Diarrhea, Antacids,
Appropriately Low ... Algorithm #nephrology #phosphorus
Low Alkaline Phosphatase - Hypophosphatasia 

Is Low Alkaline Phosphatase Of Clinical Importance?

ALP enzyme- Discovered in 1923
Low
Low Alkaline Phosphatase ... Hypophosphatasia Is Low ... Discovered in 1923 Low ... deficiency • Low ... phosphorus level
Hypophosphatemia and Hypoxia - Pathophysiology

↓ Phosphate leads to ↓ red cell 2,3-DPG and a  reduction
weakness (defined as low ... inspiratory pressure or low ... change in serum phosphorus ... ↓ phosphorus ... condition of renal phosphorus
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
Potassium depletion, Phosphorus ... nephrology #magnesium #low
Parathyroid Hormone (PTH) Effect in Calcium and Phosphorus
Calcium - Net Effect Hypercalcemia:
   ↑ intestinal
in Calcium and Phosphorus ... tubular reabsorption Phosphorus ... parathormone #Calcium #Phosphorus