Lab test requirements · preparation, ID, referral, and timing United States · 0 communities

Mid-Atlantic · Comprehensive Metabolic Panel (CMP) Online Testing

Comprehensive Metabolic Panel (CMP) Online Testing in Maryland

Below is a plain-language overview of the comprehensive metabolic panel (cmp) online testing. The Comprehensive Metabolic Panel (CMP) is a common blood test that provides a broad snapshot of your body's chemical balance and organ function.

Sample typeBlood and/or urine at a collection lab
ReferralIncluded — no referral from your own doctor needed

Lab requirements in Maryland

Here is what you need before ordering and completing the Comprehensive Metabolic Panel (CMP) Online Testing in MD. Review each item and confirm the details with the collection lab.

Physician's order
Included. A physician's order is required for lab testing and is provided for you by our partner's physicians — no referral from your own doctor is needed.
Fasting
Fasting is required for this test — follow the collection lab's instructions.
Preparation
Preparation instructions can vary depending on the laboratory and the reason for testing. Always follow the specific instructions provided by the collection lab, which may include fasting…
Sample & visit
A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
Identification
Bring the lab requisition form from your account. The collection lab may also ask for a government-issued photo ID.
Turnaround
1-3 business days
Availability
Our partner lab does not serve ND, RI, NY, NJ, MD or HI, including MD. Confirm availability for your location with the collection lab.

Before you go

  • Order your test before visiting a lab, then use the requisition form in your account.
  • Print the requisition form, or fax it to the lab directly from your account.
  • No scheduling is needed — visit the collection lab during its normal business hours.
  • A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
  • Bring a government-issued photo ID in case the lab requests it.
  • Results are posted to your secure account within 1–3 business days.

Requirements are summarized from our partner lab's published policies. Preparation and availability can change — confirm current instructions with the collection lab before your visit.

What this test is

The CMP is a group of tests that measure several substances in the blood, including glucose, electrolytes, and markers of kidney and liver function. It is often used as a general health screening tool or to monitor ongoing conditions.

What it measures

  • Glucose — reflects blood sugar levels
  • Calcium — reflects calcium balance
  • Sodium, potassium, chloride, and bicarbonate — reflect electrolyte and fluid balance
  • Blood urea nitrogen (BUN) and creatinine — reflect kidney function
  • Albumin and total protein — reflect nutritional status and liver function
  • Liver enzymes (ALP, ALT, AST) — reflect liver health
  • Bilirubin — reflects liver and bile duct function

What the test involves

The test requires a standard blood draw, usually from a vein in your arm. The sample is then sent to a laboratory for analysis.

Why it is often ordered

A clinician may order a CMP as part of a routine checkup, to screen for conditions such as diabetes or kidney disease, or to monitor the effects of certain medications. It can also help evaluate symptoms like fatigue, confusion, or swelling.

Preparation

Preparation instructions can vary depending on the laboratory and the reason for testing. Always follow the specific instructions provided by the collection lab, which may include fasting for several hours before the draw.

How results are reported

Results are typically reported as numerical values for each component, along with a reference range. Reference ranges can differ between laboratories, so your results should be interpreted in the context of the lab that performed the test.

Before you go

  • Whether fasting is required before the test
  • Any medications or supplements that might affect results
  • The specific reference ranges used by the laboratory

Cities

Comprehensive Metabolic Panel (CMP) Online Testing in Maryland communities

Choose your city for local context and to order this test.

Baltimore2,205,092Comprehensive Metabolic Panel (CMP) Online TestingBel Air South222,834Comprehensive Metabolic Panel (CMP) Online TestingHagerstown194,602Comprehensive Metabolic Panel (CMP) Online TestingFrederick175,032Comprehensive Metabolic Panel (CMP) Online TestingWaldorf119,442Comprehensive Metabolic Panel (CMP) Online TestingSalisbury108,982Comprehensive Metabolic Panel (CMP) Online TestingColumbia105,086Comprehensive Metabolic Panel (CMP) Online TestingGermantown90,235Comprehensive Metabolic Panel (CMP) Online TestingSilver Spring82,472Comprehensive Metabolic Panel (CMP) Online TestingEllicott City74,432Comprehensive Metabolic Panel (CMP) Online TestingEldersburg70,639Comprehensive Metabolic Panel (CMP) Online TestingGlen Burnie69,739Comprehensive Metabolic Panel (CMP) Online TestingGaithersburg68,827Comprehensive Metabolic Panel (CMP) Online TestingRockville67,095Comprehensive Metabolic Panel (CMP) Online TestingDundalk66,426Comprehensive Metabolic Panel (CMP) Online TestingBethesda66,294Comprehensive Metabolic Panel (CMP) Online TestingTowson59,014Comprehensive Metabolic Panel (CMP) Online TestingBowie58,113Comprehensive Metabolic Panel (CMP) Online TestingSevern53,955Comprehensive Metabolic Panel (CMP) Online TestingAspen Hill53,850Comprehensive Metabolic Panel (CMP) Online TestingWheaton51,836Comprehensive Metabolic Panel (CMP) Online TestingNorth Bethesda50,695Comprehensive Metabolic Panel (CMP) Online TestingPotomac46,891Comprehensive Metabolic Panel (CMP) Online TestingOdenton43,488Comprehensive Metabolic Panel (CMP) Online TestingCatonsville42,789Comprehensive Metabolic Panel (CMP) Online TestingWoodlawn42,053Comprehensive Metabolic Panel (CMP) Online TestingEssex40,710Comprehensive Metabolic Panel (CMP) Online TestingAnnapolis40,581Comprehensive Metabolic Panel (CMP) Online TestingClinton39,925Comprehensive Metabolic Panel (CMP) Online TestingSeverna Park39,108Comprehensive Metabolic Panel (CMP) Online TestingChillum36,428Comprehensive Metabolic Panel (CMP) Online TestingOlney35,815Comprehensive Metabolic Panel (CMP) Online TestingRandallstown35,641Comprehensive Metabolic Panel (CMP) Online TestingOwings Mills35,170Comprehensive Metabolic Panel (CMP) Online TestingCollege Park34,961Comprehensive Metabolic Panel (CMP) Online TestingMontgomery Village34,489Comprehensive Metabolic Panel (CMP) Online TestingPikesville33,549Comprehensive Metabolic Panel (CMP) Online TestingPasadena31,583Comprehensive Metabolic Panel (CMP) Online TestingBel Air North30,969Comprehensive Metabolic Panel (CMP) Online TestingParkville30,783Comprehensive Metabolic Panel (CMP) Online TestingMilford Mill30,685Comprehensive Metabolic Panel (CMP) Online TestingMiddle River30,606Comprehensive Metabolic Panel (CMP) Online TestingCarney29,873Comprehensive Metabolic Panel (CMP) Online TestingCrofton29,812Comprehensive Metabolic Panel (CMP) Online TestingLaurel29,438Comprehensive Metabolic Panel (CMP) Online TestingPerry Hall29,165Comprehensive Metabolic Panel (CMP) Online TestingSouth Laurel27,998Comprehensive Metabolic Panel (CMP) Online TestingReisterstown27,917Comprehensive Metabolic Panel (CMP) Online TestingIlchester27,513Comprehensive Metabolic Panel (CMP) Online TestingClarksburg27,354Comprehensive Metabolic Panel (CMP) Online TestingLochearn26,995Comprehensive Metabolic Panel (CMP) Online TestingSuitland26,375Comprehensive Metabolic Panel (CMP) Online TestingFort Washington25,840Comprehensive Metabolic Panel (CMP) Online TestingFairland25,324Comprehensive Metabolic Panel (CMP) Online TestingArnold25,056Comprehensive Metabolic Panel (CMP) Online TestingEdgewood25,004Comprehensive Metabolic Panel (CMP) Online TestingGreenbelt24,602Comprehensive Metabolic Panel (CMP) Online TestingLandover24,508Comprehensive Metabolic Panel (CMP) Online TestingNorth Potomac24,449Comprehensive Metabolic Panel (CMP) Online TestingNorth Laurel24,233Comprehensive Metabolic Panel (CMP) Online Testing