175 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
A-a gradient = PAO2 ... : Atelectasis, ARDS ... Obstructive Lung Disease ... , Interstitial Disease ... Interstitial Lung Disease
Acute Respiratory Distress Syndrome – ARDS: Clinical Cheat Sheet

An acute diffuse, inflammatory lung injury, leading to
Distress Syndrome – ARDS ... on CT or CXR ● PaO2 ... there is no clear cause ... the underlying cause ... days after dx of ARDS
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
appearances of pulmonary diseases ... in HIV/AIDS Patients ... Pulmonary edema; ARDS ... , Metastatic disease ... complex • Nodular/Masses
Leptospirosis
Pathogen: Leptospira (interrogans, kirschneri, noguchii)
Risk Factors:
 • Occupational exposure - Farmers, ranchers, trappers, veterinarians
 • Recreational
Presentation: • Mild disease ... non-productive cough, nausea ... Severe pulmonary disease ... ARDS Diagnosis ... agglutination - test
Wing-Beating Tremor of Wilson's Disease

Characterized by low frequency, high amplitude, near arm tremor caused by continuous
Tremor of Wilson's Disease ... near arm tremor caused ... abduction of the arms ... Tremor #Wilsons #Disease ... #clinical #video
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... fever, fatigue, Nausea ... vertigo Diagnostic tests ... - Ice cube test ... , TempTest test
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
Renal parenchymal disease ... Renal ultrasound, Tests ... of renal disease ... • Renovascular disease ... sodium loading test
HINTS Exam - Abnormal Head Impulse Test = Peripheral Cause

This video demonstrates:
1) Normal Head Impulse Test
= Peripheral Cause ... This video demonstrates ... for a PERIPHERAL cause ... Video by Dr. ... PhysicalExam #Clinical #Video
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
proportion of truly diseased ... identified as diseased ... correctly diagnose a case ... that any given case ... identify a non-diseased
Pemberton's Sign caused by a Retrosternal Thyroid Goiter

Elevating the arms causes the previously flat neck veins
Pemberton's Sign caused ... Elevating the arms ... causes the previously ... PhysicalExam #clinical #video