Diagnosis & Treatment Basics: Tests, Meds, and Next Steps
Learn the basic tools clinicians use to detect heart disease and the core principles of treatment.
How Clinicians Start: History + Vitals + Patterns
Diagnosis often begins with a pattern: symptoms, triggers, past history, and risk factors. Vital signs (especially blood pressure, heart rate, oxygen level) add immediate clues.
Common Tests (Beginner Level)
Blood Pressure
Measures the force against artery walls. High BP increases strain and long-term damage.
ECG/EKG
Shows electrical activity. Can suggest rhythm problems, strain, or past/ongoing injury patterns.
Blood Tests
Examples include lipids and glucose markers. In emergencies, special markers can suggest heart muscle injury.
Echocardiogram
Ultrasound of the heart: evaluates pumping function, valves, and overall structure.
Stress Testing
Checks how the heart responds to exertion, helping identify reduced blood flow patterns.
Imaging (Overview)
Some scans visualize vessels or heart structure. Used based on symptoms and clinical need.
Treatment: The Big Four
- Lifestyle foundations (nutrition, activity, sleep, stress reduction)
- Medications (reduce risk, relieve symptoms, protect heart muscle)
- Procedures (restore blood flow or correct structural problems)
- Follow-up (monitoring, rehab, adherence, education)
Why Medications Help (Plain Language)
Some meds reduce blood pressure, some reduce clot risk, some improve blood flow, and some reduce workload on the heart—often used together depending on the condition.
Procedures You’ll Hear About
PCI / Stent
A procedure to open a narrowed coronary artery and keep it open with a small mesh tube (stent).
Bypass Surgery (CABG)
Creates a new route around blocked arteries using graft vessels to improve blood flow.
Rehab & Monitoring
Cardiac rehab and follow-up improve long-term outcomes through supervised exercise and education.
Mini Check (3 minutes)
- Q: What does an echocardiogram show?
A: Pumping function, valves, and structure. - Q: Name one reason medications are used in heart disease.
A: Lower BP, reduce clot risk, improve blood flow, reduce heart workload. - Q: What is a stent used for?
A: Keeping a narrowed artery open to improve blood flow.