What is the best initial diagnostic test Flashcards
Asthma
- Peak expiratory flow (PEF) which depends on age and height
- Arterial blood gas (ABG) which shows an increased A-a gradient
Note: both of them also can be used to quantify the severity of an acute exacerbation
RTA Type I
Urine analysis looking for pH above 5.5
Goodpasture syndrome
Anti-GBM antibodies
Nephrotic syndrome
- Urine analysis
- Doing the albumin/creatinine ratio on spot to determine the 24 hr urine albumin
Acute Kidney Injury
BUN and Creatinine
Acute Kidney Injury
Initial Imaging
Renal U/S
Renal Papillary Necrosis
Urine analysis
Urinary Tract Infection (UTI)
Urine analysis
Esophageal cancer
Barium swallow
Celiac disease
Anti-tissue transglutaminase
Carcinoid syndrome
Urinary 5-hydroxyindoleacetic acid (5-HIAA) test
Diverticulitis
CT scan
Acute pancreatitis
Serum amylase and lipase
Spontaneous bacterial peritonitis
Paracentesis (cell count with more than 250 neutrophils)
Hemochromatosis
Iron studies (increased serum iron and ferritin with decreased iron binding capacity)