Health Guide · Testing
Understand your health.
Know what to test.
Health testing goes far beyond routine blood work - but you don’t need every test. Start with what you want to know, and we’ll show you what’s worth considering, why, and exactly what to ask for.
When to get help now
Life-threatening emergency — call 911
Chest pain or pressure, sudden weakness or trouble speaking, fainting, severe breathlessness, vomiting blood. For thoughts of self-harm, call or text 988.
Anything else that worries you
Contact your healthcare provider. Don’t wait for a test result to ask.
Test types
A “test” can be a lot of different things.
A blood draw, a stool sample, a scan, a treadmill. Each sees something the others can’t - which is why the best answer to a question is often not another blood marker.
What about 100-biomarker panels? They’re one blood draw measuring many markers at once. That can be convenient - but more markers isn’t more insight. A smaller set chosen for your age, symptoms and family history usually tells you more you can act on.
Tests connect
One number is a clue. Connected, it’s a picture.
A result means more next to the rest of your health. Here’s how a raised ApoB connects to everything around it.
Help explain the number
LDL cholesterol
Measures the cholesterol inside the particles; ApoB counts the particles. When they disagree, ApoB tracks risk more closely.
Triglycerides
When high, cholesterol is spread across more, smaller particles - LDL can look fine while ApoB is raised.
Fasting insulin & HbA1c
Insulin resistance often raises triglycerides and particle numbers together.
Thyroid (TSH)
An underactive thyroid can push ApoB up - and is treatable.
ApoB
Raised
Change what it means for you
Blood pressure
Doesn’t change ApoB - but strains artery walls so particles lodge more easily. The two risks multiply, not just add.
Lp(a)
An inherited particle that adds its own risk on top. Usually one test for life.
Family history
Early heart disease in a parent or sibling means the same ApoB carries more weight.
Calcium score
Shows whether calcified plaque has already built up in the heart arteries. A zero doesn’t rule out softer, earlier plaque.
With Isabella
Coming soonPersonal to you - not more tests.
When you’re on Ziva, Isabella reads what you’ve already measured and explains what may or may not be worth adding - based on your age, history, symptoms and trends.
Completed
Lipid panelMar 2026
HbA1cMar 2026
Vitamin DJan 2026
Not yet measured
ApoBNever
Lp(a)Never · one-time
May be relevant
Calcium scoreAge 52 + family history
Fecal calprotectinLoose stools logged 9× in 30 days
✦
Isabella
“Your LDL looks fine, but your triglycerides have crept up for two years and your father had a heart attack at 52. ApoB and a one-time Lp(a) would tell you more than repeating the same panel.”
Ziva Health
One test is a snapshot. Ziva shows the whole story.
Ziva brings your lab results, wearables and daily readings together - and Isabella tells you what’s changing and what to ask your provider next.
Refer Ziva to my provider / care team
Is your provider not on Ziva yet? Send them a link in under a minute - once they join, they’ll see your results alongside your daily trends and get alerts directly.
Refer my providerAlready seeing your provider?
Bring your Ziva 30-day report to your next appointment - your results and daily trends in one view, so the conversation starts with the full picture.
Get my 30-day reportNo provider? Find a clinical partner
Being listed here doesn’t mean Ziva recommends the test for everyone. This guide is educational and not medical advice - results should be interpreted with a qualified clinician.