910 results
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
worsen with head position ... • Short-lived, positional ... Positive Hallpike ... vestibular neuritis); positive ... Positive head impulse
Jugular Venous Pressure Measurement
Examiner places the patient in a reclined position and puts the base of
in a reclined position ... Positive: JVP >
Differentiating Benign Paroxysmal Positional Vertigo (BPPV) From Vestibular Neuritis-Labyrinthitis
BENIGN PAROXYSMAL POSITIONAL VERTIGO
 • Age: More common
Benign Paroxysmal Positional ... BENIGN PAROXYSMAL POSITIONAL ... Hallpike test: Positive ... in head-hanging position ... impulse test: Positive
Positive Predictive Value Calculation - Probability that someone with a positive test actually has the disease

Positive
Positive Predictive ... someone with a positive ... the disease Positive ... / (TP + FP) Positive ... / All Positives
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
TP + FN) = true positives ... disease absent Positive ... TP + FP) = true positives ... / all positives ... all negatives Positive
Cyriax Release Test for Thoracic Outlet Syndrome

Positioned behind the patient, the examiner tilt's the patient's drunk
Outlet Syndrome Positioned ... , holding this position ... The test is positive
Carnett's Sign to localize Abdominal Wall (Musculoskeletal) Pain
Step 1 : The clinician identifies and palpates the
resting supine position ... examination table (tense position ... Positive Carnett's ... muscles in the tense position ... tenderness as the rest position
Treatment of Obstructive Sleep Apnea
Positive airway pressure therapy
   → Positive pharyngeal transmural pressure
Obstructive Sleep Apnea Positive ... therapy → Positive ... exercise, sleeping position
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
Can Cause False Positives ... yielding false-positive ... can cause false positives ... may cause false-positive ... sertraline #False #positive
Classic Findings During Hallpike Test in Posterior Canal Benign Paroxysmal Positional Vertigo (BPPV)
 • Latency (delay
Benign Paroxysmal Positional ... in head-hanging position ... in head-hanging position ... in head-hanging position ... returns to sitting position