Diagnostic Tests Flashcards
Autoimmune, Various
↑erythrocyte sedimentation rate (ESR)
↑C-reactive protein (CRP)
(+)rheumatoid factor (RF) antibodies
(+)anti-nuclear antibody (ANA)
Rheumatoid Arthritis (RA)
↑erythrocyte sedimentation rate (ESR)
↑C-reactive protein (CRP)
(+)rheumatoid factor (RF) antibodies
(+)anti-nuclear antibody (ANA)
(+) anti-citrullinated peptide antibody (ACPA)
Systemic Lupus Erythematosus (SLE)
↑erythrocyte sedimentation rate (ESR)
↑C-reactive protein (CRP)
(+)rheumatoid factor (RF) antibodies
(+)anti-nuclear antibody (ANA)
(+)anti-citrullinated peptide antibody (ACPA)
(+)anti-dsDNA antibodies
Multiple Sclerosis
magnetic resonance imaging (MRI)
Anemia
All: ↓Hgb/Hct/RBCs
Microcytic (or Fe-deficiency): ↓MCV (cell size is smaller, MCV <80 fL)
Macrocytic (or B12 or folate deficiency): ↑MCV (cell size is larger, MCV >100 fL), Schilling test
Venous Thromboembolism (VTE)
D-dimer test (marker of fibrinolysis)
Deep vein thrombosis (DVT): ultrasound (US), venography, MRI
Pulmonary embolism (PE): pulmonary computed tomographic angiography (CTA)
Stroke Prevention
CHA2DS2-VASc scoring system (score directs need for anticoagulation in patients with atrial fibrillation)
Heparin-Induced Thrombocytopenia (HIT)
Unexplained ↓platelets (>50% drop from baseline) 5-14 days after starting heparin
Positive antibodies based on a heparin platelet factor (PF4) ELISA and/or serotonin release assay (SRA)
Acute Coronary Syndrome (ACS)
electrocardiogram (ECG or EKG)
cardiac enzymes [creatinine kinase muscle/brain (CK-MB), troponin I, T]
Arrhythmias
ECG (or EKG)
Holter monitor (portable ECG device)
heart rate (HR)
Cerebrovascular Accident (CVA or Stroke)
computed tomography (CT)
MRI
Chronic Heart Failure
echocardiogram (echo)
↑B-type natriuretic peptide (BNP)
↑N-terminal proBNP (NT-proBNP)
Stable Ischemic Heart Disease (SIHD)/Chronic Stable Angina
cardiac stress test
angiography
Dyslipidemia
↑TC, Non-HDL, LDL, TGs
coronary artery calcium (CAC, a non-invasive CT scan of the heart that measures calcium-containing plaque)
Hypertension
↑systolic blood pressure (SBP)/diastolic blood pressure (DBP)
Hypertensive Emergency or Urgency
Emergency: ↑BP (≥180/120 mmHg) with acute target organ damage
Urgency: ↑BP (≥180/120 mmHg) without acute target organ damage
10-Year Risk for Atherosclerotic Cardiovascular Disease (ASCVD)
10-year ASCVD risk tool [use if no history of ASCVD (ACS/IHD, stroke, PAD)]
Diabetes, Prediabetes
fasting plasma glucose (FPG), oral glucose tolerance test (OGTT), hemoglobin A1C (A1C)
Hyperthyroidism
↓thyroid stimulating hormone (TSH)
↑free T4 (FT4)
Hypothyroidism
↑TSH
↓FT4
Ovulation
luteinizing hormone (LH), peak value provides optimal timing for intercourse to become pregnant
Pregnancy
positive human chorionic gonadotropin (hCG) in urine (outpatient test kit) or in blood
Bacterial Vaginitis
clear, white or gray vaginal discharge with a fishy odor and pH >4.5, little or no pain
Candida Vaginitis
white, thicker vaginal discharge, pruritus
Trichomoniasis
yellow, green frothy, foul-smelling vaginal discharge, pH >4.5, soreness and pain with intercourse
Peptic Ulcer Disease
Upper gastrointestinal endoscopy (mouth to small intestine)
Duodenal ulcer: pain 2-3 hours after eating (without food in stomach), pain relief with food/antacids
Gastric ulcer: pain right after eating (with food in stomach), little/no pain relief with food/antacids
GERD
esophageal pH monitoring
endoscopy
H. pylori
urea breath test (UBT)
fecal antigen test
Inflammatory Bowel Disease (Ulcerative Colitis, Crohn’s Disease)
endoscopy (for Crohn’s disease, which affects more of the GI tract)
sigmoidoscopy (for ulcerative colitis, which affects the colon & rectum)
for both: colonoscopy, biopsy, CT, MRI
Bronchospastic Diseases
Spirometry, measures three main variables:
FEV1: how much air can be forcefully exhaled in one second
FVC: the maximum amount of air that can be forcefully exhaled
FEV1/FVC: percentage of total air capacity (vital capacity) that can be forcefully exhaled in one second