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diagnosis table central differential peripheral background bppv chestxray cxr dizziness doses hints imaging management nuclear patientinfo radiation radiology risks study
HINTS Exam - Distinguishing Central from Peripheral Vertigo • Head Impulse: Head thrust 10° with eyes
from Peripheral Vertigo ... • Head Impulse ... : Head thrust 10 ... #diagnosis #neurology ... #bppv #comparison
Characteristics of Peripheral and Central Vertigo PERIPHERAL VERTIGO • Onset: Sudden • Intensity: Severe initially, often decreasing
labyrinthitis • Head ... toward nose) • Head ... can worsen with head ... signs #symptoms #comparison ... #neurology
Diagnostic Algorithm for Dizziness and Vertigo Peripheral Vertigo: • Attacks: Sudden, severe, can last anywhere from seconds
Diagnostic Algorithm ... Varies • No neurologic ... Can worsen with head ... Positive head impulse ... #Algorithm #differential
Causes of Peripheral and Central Vertigo PERIPHERAL VERTIGO 1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
usually lasting ... with significant neurologic ... Head trauma - Symptoms ... shortly after head ... and 67% had headache
Differentiating Benign Paroxysmal Positional Vertigo (BPPV) From Vestibular Neuritis-Labyrinthitis BENIGN PAROXYSMAL POSITIONAL VERTIGO • Age: More common
Paroxysmal Positional Vertigo ... only with upbeat and ... torsional nystagmus and ... Labyrinthitis #diagnosis #neurology ... #comparison
Dizziness and Vertigo Algorithm Presyncope: • Feels "faint" or like they are going to "pass out" •
Dizziness and Vertigo ... Algorithm Presyncope ... movement of the head ... #Algorithm #dizzy ... differential #diagnosis #neurology
Syncope Diagnostic Testing and Evaluation: Cost Effectiveness Frequency obtained - Abnormal findings - Helped determine etiology of
Syncope Diagnostic Testing ... and Evaluation: ... Cardiac enzymes, Head ... CT, Echo, Orthostatic ... Effectiveness #table #comparison
Hematuria Workup and Diagnosis Algorithm • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
Hematuria Workup and ... Diagnosis Algorithm ... mimics, repeat testing ... → CT urography and ... Hematuria #Diagnosis #Algorithm
Estimated Medical Radiation Doses for 5 Year-Old Child 3-view ankle 0.0015 mSv 1/14th CXRs 2-view chest 0.02 mSv 1 CXRs Anteroposterior and lateral
Anteroposterior and ... 1 mSv 50 CXRs Head ... Chest CT 3 mSv ... #Nuclear #Comparison ... #Table #Risks #Testing
Management Algorithm for Confusion - Substrate verification, glucose, oxygen checks - Toxidrome present - Focal findings on neurologic examination -
Management Algorithm ... Focal findings on neurologic ... criteria - ED testing ... directed by history and ... include cranial CT
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