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What Blood Test Measures Insulin Resistance?
From fasting insulin to HOMA-IR and the triglyceride-to-HDL ratio, here are the blood tests your doctor can use to check for insulin resistance.
How to Diagnose Alopecia Areata: Tests and Signs
Learn how doctors diagnose alopecia areata, from visual signs and the hair pull test to trichoscopy, biopsies, and blood work.
How to Test for Reactive Arthritis: Blood to Imaging
Reactive arthritis has no single definitive test. Learn how doctors combine blood work, infection testing, and imaging to reach a diagnosis.
How to Diagnose EPI: Stool, Blood, and Imaging Tests
Learn which stool, blood, and imaging tests doctors use to diagnose exocrine pancreatic insufficiency and what to expect during the process.
What Is an ACR Test and Why Doctors Order It
The ACR test measures protein in your urine to check how well your kidneys are filtering. Here’s what your results mean and why the test matters.
How to Collect a Nasopharyngeal Swab: Step-by-Step
Learn the correct technique for collecting a nasopharyngeal swab, from equipment and patient prep to specimen handling and improving test accuracy.
How to Diagnose Tachycardia: Tests Doctors Use
From a simple ECG to electrophysiology studies, here’s how doctors identify the cause of a fast heart rate and what each test reveals.
How to Test for Alzheimer’s Disease: What Doctors Use
Doctors use a combination of cognitive tests, blood work, brain scans, and more to diagnose Alzheimer’s. Here’s what each test looks for and why it matters.
Is Doppler Ultrasound Safe During Pregnancy?
Doppler ultrasound is generally safe in pregnancy when used medically, but home fetal dopplers carry real risks worth knowing about.
How to Diagnose Insulinoma: From Fasting to Imaging
Insulinoma diagnosis involves recognizing hypoglycemia patterns, fasting tests, and imaging to locate the tumor before considering genetic screening.
Why Would a Doctor Order a Chest X-Ray?
Chest X-rays help doctors check for lung issues, heart problems, broken bones, and more. Here’s when they’re ordered and what to expect.
How to Diagnose GERD: From Symptoms to Testing
Learn how doctors diagnose GERD, from recognizing symptoms to pH monitoring, endoscopy, and other tests that confirm acid reflux.
Is There a Test for Neuropathy? What Doctors Use
Diagnosing neuropathy often takes more than one test. Here’s what doctors actually use, from nerve conduction studies to skin biopsies, and why.
Will an MRI Show a Hamstring Tear? Yes—Here’s How
MRI can detect hamstring tears and grade their severity, helping doctors choose the right treatment and track your healing progress.