34 results
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
- Differential ... Water Deprivation Test ... Water Deprivation Test ... response • Central ... #Nephrology #Differential
The HINTS Exam - Differentiating Central vs Peripheral Vertigo

Head Impulse Test
Nystagmus
Test of Skew

Animation by Dr. Y.
Differentiating Central ... Head Impulse Test ... Nystagmus Test ... #HINTS #Exam #PhysicalExam ... #Peripheral #Neurology
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
 • Primary
Polyuria - Differential ... Polydipsia • Central ... solute load #Polyuria ... #Differential # ... Algorithm #causes #nephrology
HINTS Exam - Abnormal Test of Skew (Abnormal Vertical Skew)

In a patient with vertigo symptoms, this
Exam - Abnormal Test ... worrisome for a CENTRAL ... #HINTS #PhysicalExam ... Clinical #Video #Neurology ... #Vertigo #Central
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Causes of Polyuria ... - Differential ... Insipidus): • Central ... #Differential # ... Diagnosis #Causes #nephrology
HINTS Exam - Normal Head Impulse Test = Central Cause

This patient as a normal head impulse
Normal Head Impulse Test ... = Central Cause ... normal head impulse test ... #HINTS #PhysicalExam ... Clinical #Video #Neurology
The head impulse test (HIT) result is positive (abnormal) in nearly all patients with a peripheral
The head impulse test ... patients with a central ... a stand-alone test ... #Diagnosis #PhysicalExam ... #Neurology #AVS
HINTS Exam - Distinguishing Central from Peripheral Vertigo
 • Head Impulse: Head thrust 10° with eyes
Distinguishing Central ... following a finger) • Test ... TylerLarsenMD #HINTS #physicalexam ... #Central #Peripheral ... Vertigo #diagnosis #neurology
Ocular Ultrasound Pocketcard
Painless Vision Loss
 • Retinal Detachment 
 • Posterior Vitreous Detachment 
 • Vitreous
Ocular Ultrasound ... Hemorrhage • Central ... Pocus101 #Ocular #Ultrasound ... #pocus #differential ... diagnosis #radiology #ophthalmology
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Varies • No neurologic ... may be present Central ... Positive Hallpike test ... or supine roll test ... Vertigo #Algorithm #differential