55 results
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
Medications that ... on Drug Tests ... on drug tests? ... #drug #tests #differential ... #diagnosis #toxicology
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Diagnostic Algorithm ... findings BPPV • Short-lived ... test (posterior ... #differential #diagnosis ... #neurology
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
patients with anemia, diagnose ... chronic kidney tests ... Test for celiac ... is positive Bidirectional ... Evaluation #workup #diagnosis
Romberg's Test for Proprioception
History: First described in the 19th century in patients with tabes dorsalis (later
Romberg's Test for ... syphilis) Meaning: Positive ... test (Romberg's ... open and closed Positive ... #neurology #diagnosis
Acute Treatment of Migraine
Mild Attacks: NSAIDs, Simple Analgesics
Moderate/Severe Attacks: Triptans, Ditans, Gepants, Ergots
Non-pharmacologic Treatment: Neuromodulation, Rest,
Gepants, Ergots Non-pharmacologic ... Neuromodulation, Rest ... , Hydration, Meditation ... treatment #management #neurology
Differentiating Benign Paroxysmal Positional Vertigo (BPPV) From Vestibular Neuritis-Labyrinthitis
BENIGN PAROXYSMAL POSITIONAL VERTIGO
 • Age: More common
: Positive usually ... in head-hanging position ... : Positive (corrective ... Labyrinthitis #diagnosis ... #neurology #comparison
The head impulse test (HIT) result is positive (abnormal) in nearly all patients with a peripheral
The head impulse test ... HIT) result is positive ... a stand-alone test ... #Diagnosis #PhysicalExam ... #Neurology #AVS
A normal plantar reflex response involves toe flexion, or even no movement. A positive test, also
A positive test, ... A positive response ... PhysicalExam #Diagnosis ... #Neurology
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
Contributing to False Positives ... Rate of False Positives ... • mouthwash, short-chain ... naproxen and modern tests ... Testing #Laboratory #diagnosis
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
; if positive, test ... - Positive in ... • Hepatitis B serology ... (to support a diagnosis ... laboratory #workup #diagnosis