78 results
COVID-19 PCR and Serology Testing - Timeline
 • Nucleic Acid Test - Most reliable and can
COVID-19 PCR and Serology ... Testing - Timeline ... • Nucleic Acid Test ... antibody #antibodies #testing ... #laboratory #Timeline
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
• Additional laboratory ... tests may be needed ... chronic kidney tests ... Test for celiac ... Non-invasive testing
Helicobacter Pylori Testing  Methods - Sensitivity and Specificity

Serology - 85% - 79% - Does not
Helicobacter Pylori Testing ... Specificity Serology ... Urea breath test ... first line test ... #Laboratory #Diagnosis
The head impulse test (HIT) result is positive (abnormal) in nearly all patients with a peripheral
The head impulse test ... with a peripheral cause ... with a central cause ... #PhysicalExam #Neurology ... #HeadImpulse #Testing
Froment’s Test for Ulnar Nerve Palsy

This tests for pinch grip weakness caused by ulnar nerve palsy,
Froment’s Test for ... grip weakness caused ... ulnar nerve palsy, testing ... #Nerve #Palsy #clinical ... #video #neurology
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
more time for the laboratory ... • Hepatitis B serology ... testing • Serum ... ANA and RF (if clinical ... Rheumatoid #Arthritis #laboratory
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Causes of Thrombocytopenia ... smear, HIV/HCV testing ... K), H. pylori test ... thyroid function test ... (CVID, WAS), (neurologic
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
drugs that may cause ... false positive tests ... DrugScreens #UDS #Laboratory ... FalsePositive #Testing
HINTS Exam - Abnormal Head Impulse Test = Peripheral Cause

This video demonstrates:
1) Normal Head Impulse Test
Abnormal Head Impulse Test ... = Peripheral Cause ... for a PERIPHERAL cause ... #PhysicalExam #Clinical ... #Video #Neurology
Intention Tremor on Physical Exam Demonstrated by Finger to Nose Testing

Caused by cerebellar dysfunction.

#Intention #Tremor #Dysmetria
Finger to Nose Testing ... Caused by cerebellar ... #Finger #Nose #clinical ... #physicalexam #neurology