Also Known As
BMP, Chem 7, Chemistry Panel, Chemistry Screen
Purpose of the BMP Blood Test
What is a BMP blood test? This essential test assesses your metabolic functions, or how well your body converts food into energy that fuels your daily life.
What Does the Basic Metabolic Panel 8 Measure?
A basic metabolic panel encompasses eight tests, measuring:
- Glucose
- Calcium
- Blood urea nitrogen (BUN)
- Creatinine
- Sodium
- Potassium
- Bicarbonate/carbon dioxide
- Chloride
Blood glucose, or blood sugar, is measured to help diagnose issues such as type 2 diabetes. Calcium is a vital mineral; you want to ensure your body gets enough of it for healthy bones, kidneys, and parathyroid glands. BUN and creatinine are blood waste products, and high levels in your BMP labs may mean your kidneys aren’t able to filter waste effectively. The other four are all electrolytes that play roles in everything from nerve and muscle function to maintaining your body’s pH balance.
Who Should Take a BMP Test?
Your physician may recommend a BMP blood test during your annual wellness visit to monitor your overall health. It may also be ordered if:
- You’re on dialysis, an intravenous drip, or a feeding tube.
- You’re at an advanced age.
- You have or are at risk for diseases: chronic kidney disease, type 2 diabetes, lung issues, metabolic problems, hormonal abnormalities, Addison’s disease, Cushing’s syndrome, or nutritional deficiency.
BMP Blood Work Preparation
It’s important to follow the recommended preparations for any test to ensure the most accurate results. For the basic metabolic panel 8, fasting for 12 hours before the blood draw is a must. You should also abstain from alcohol 24 hours before testing.
BMP Blood Test Normal Ranges
Here are the standard reference ranges for each of the 8 markers in the Basic Metabolic Panel:
| Biomarker | Normal Range | What It Evaluates |
|---|---|---|
| Glucose | 70–99 mg/dL (fasting) | Blood sugar, diabetes screening |
| Calcium | 8.5–10.2 mg/dL | Bone health, parathyroid, kidney function |
| Sodium | 136–145 mEq/L | Fluid balance, nerve/muscle function |
| Potassium | 3.5–5.1 mEq/L | Heart rhythm, muscle function |
| Chloride | 98–107 mEq/L | Fluid and pH balance |
| Bicarbonate (CO2) | 22–29 mEq/L | Acid-base balance, lung/kidney function |
| BUN | 7–20 mg/dL | Kidney waste filtration |
| Creatinine | 0.6–1.2 mg/dL (men), 0.5–1.1 mg/dL (women) | Kidney function |
Reference ranges may vary slightly by laboratory and age. Always review results with a qualified healthcare provider.
If any marker falls outside the normal range, additional testing may be recommended. High creatinine or BUN may indicate kidney stress; high glucose may warrant a follow-up A1c test for diabetes evaluation.
BMP vs CMP — What’s the Difference?
One of the most common questions about the BMP is how it compares to the CMP (Comprehensive Metabolic Panel). Here’s the quick answer:
| Test | Markers | Best For |
|---|---|---|
| BMP (Basic, 8 markers) | Glucose, calcium, sodium, potassium, chloride, bicarbonate, BUN, creatinine | Kidney function, blood sugar, electrolyte balance |
| CMP (Comprehensive, 14 markers) | Everything in BMP + ALT, AST, ALP, bilirubin, total protein, albumin | Everything in BMP + liver function and protein levels |
Choose the BMP if: You want a focused snapshot of kidney function, blood sugar, and electrolytes — ideal for annual monitoring, diabetes management, or checking kidney health on a budget.
Choose the CMP if: You want a broader picture that also includes liver function markers. The CMP is the better choice for annual wellness checkups, medication monitoring (especially statins, blood pressure meds, or NSAIDs that affect the liver), or if you have any liver-related concerns.
The BMP costs less and is the right tool for many monitoring situations. If you’re unsure which to order, the CMP covers everything the BMP does and more.
How Much Does a BMP Blood Test Cost?
A Basic Metabolic Panel (BMP) at Personalabs costs $74 — physician lab order included. No insurance required.
| Where You Get Tested | Typical Cost | Notes |
|---|---|---|
| Personalabs | $74 | Physician order included |
| Doctor’s office visit + lab | $150–$300+ | Office copay + separate lab bill |
| Hospital outpatient lab | $150–$400+ | Facility fees apply |
| Urgent care + lab | $100–$250+ | Visit fee + lab fee |
HSA and FSA eligible. A BMP qualifies as a reimbursable medical expense — pay with pre-tax healthcare dollars.
Where Can I Get a Basic Metabolic Panel Done Near Me?
Personalabs offers a wide selection of general health and wellness tests, including BMP labs, that put control over your health care decisions in your hands. The process is easy and convenient:
Step 1: Once you purchase our BMP lab test online, download the lab order. (Prior approval from your doctor may not be necessary, depending on the state you live in.)
Step 2: Find a lab near you. We partner with more than 4,000 facilities across the country, so you’re sure to find a lab that’s close by.
Step 3: Bring your lab order to your appointment for your BMP blood work.
Step 4: You’ll get results in your confidential and private Personalabs account within 2 to 10 business days. (Let us know if you need a specific turnaround time, and we will reach out to the lab on your behalf as reporting times vary.)
Our customer service agents will answer all your questions during the ordering process. We’ll help you take care of your health.
Frequently Asked Questions About the BMP Blood Test
Can I order a BMP blood test without a doctor?
Yes — in most states. Personalabs provides a physician-approved lab order with your purchase. No referral needed. Our network physician approves your order within 2–4 hours. A small number of states restrict direct-to-consumer lab testing; contact us to confirm availability in your state.
What is the difference between a BMP and a CMP?
The BMP measures 8 markers focused on kidney function, blood sugar, and electrolytes. The CMP measures all 8 BMP markers plus 6 additional liver function tests (ALT, AST, ALP, bilirubin, total protein, albumin), giving a more complete picture of overall metabolic health. If you’re primarily monitoring kidney function or blood sugar, the BMP is sufficient. For a full annual wellness panel, the CMP is the better choice.
Do I need to fast before a BMP blood test?
Yes — fasting for 10–12 hours before your BMP is required for accurate glucose and other metabolic readings. Water is fine and encouraged. Avoid alcohol for 24 hours before testing. The easiest approach is to schedule your draw first thing in the morning so the fasting window falls mostly overnight.
What does a BMP test for?
The BMP checks 8 key metabolic markers: blood glucose (diabetes screening), calcium (bone and parathyroid health), sodium, potassium, chloride, and bicarbonate (electrolyte and pH balance), plus BUN and creatinine (kidney waste filtration). Together these give a comprehensive view of how well your kidneys are working, whether your blood sugar is in range, and whether your electrolytes are balanced.
What does it mean if my BMP results are abnormal?
Abnormal results don’t automatically mean something is seriously wrong — a single out-of-range value often warrants a repeat test or additional follow-up before any diagnosis. High glucose may suggest prediabetes or diabetes; high creatinine or BUN may indicate kidney stress; electrolyte imbalances can point to dehydration, medication effects, or underlying conditions. Your provider will use your BMP in context with your symptoms and history.
How often should I get a BMP?
For most healthy adults, a BMP as part of an annual wellness checkup is sufficient. If you have diabetes, kidney disease, high blood pressure, or take medications that affect kidney or liver function, your provider may recommend testing every 3–6 months. Personalabs makes it easy and affordable to test on your own schedule.
How long does it take to get BMP blood test results?
Results are typically available in your Personalabs account within 24–48 hours of your blood draw.
