7 results
Hypophosphatemia Diagnostic Algorithm
- GI Losses
- Redistribution
- 1° HPT
- 1° Renal PO4 wasting: Hereditary, TIO, Fanconi Syndrome,
Redistribution - 1° HPT ... , TIO, Fanconi Syndrome ... Hypophosphatemia #phosphorus ... #differential #nephrology
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 • Decreased GI Absorption: Chronic Diarrhea, Antacids,
Shift: Refeeding Syndrome ... Tumor Genesis Syndrome ... Vitamin D: Primary Hyperparathyroidism ... Diagnosis #Algorithm #nephrology ... #phosphorus #workup
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
palsy • CN VI (Abducens ... One-and-a-half Syndrome ... ophthalmology #neurology ... differential #diagnosis #ocular
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
absorption (Antacids, Phosphorus ... Tumor genesis syndrome ... Primary or Tertiary hyperparathyroidism ... FGF-23: Fanconi syndrome ... Workup #phosphate #nephrology
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
metastasis (hungry bone syndrome ... Potassium depletion, Phosphorus ... Endocrine disorders: Syndrome ... Hyperthyroidism, Hyperparathyroidism ... differential #diagnosis #nephrology
Left Abducens Spasm on Physical Exam

A 50 yr male with left facial spasm and diplopia, with
Left Abducens Spasm ... diplopia, with left abducens ... paroxysmal brainstem syndrome ... PhysicalExam #clinical #ocular ... ophthalmology #neurology
Orbital Apex Syndrome secondary to Herpes Zoster Ophthalmicus (HZO)

This 81 yo male was referred to our
Orbital Apex Syndrome ... acetate to help with ocular ... Orbital Apex Syndrome ... trochlear nerve, abducens ... #physicalexam #neurology