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Southwest · Magnesium RBC Test – Deficiency Testing

Magnesium RBC Test – Deficiency Testing in New Mexico

Below is a plain-language overview of the magnesium rbc test – deficiency testing. A magnesium RBC test measures the amount of magnesium inside red blood cells, which some clinicians consider a more accurate reflection of body magnesium status than a serum magnesium test.

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

Lab requirements in New Mexico

Here is what you need before ordering and completing the Magnesium RBC Test – Deficiency Testing in NM. 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, so follow the specific directions provided by the collection laboratory. This may include fasting or avoiding certain supplements before the test.
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. 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

This test evaluates the magnesium content within red blood cells rather than in the liquid portion of blood. Because most magnesium is stored inside cells, this test may provide a better picture of overall magnesium levels. It is sometimes used when a standard serum magnesium test is normal but a deficiency is still suspected.

What it measures

  • Magnesium (RBC) — Reflects the amount of magnesium stored inside red blood cells

What the test involves

A healthcare professional collects a small sample of blood, usually from a vein in your arm, using a standard blood draw. The sample is then sent to a laboratory for analysis.

Why it is often ordered

A clinician may order this test to assess magnesium status when symptoms such as muscle cramps, weakness, or irregular heartbeat suggest a possible deficiency. It can also be used to monitor conditions or treatments that affect magnesium levels.

Preparation

Preparation instructions can vary, so follow the specific directions provided by the collection laboratory. This may include fasting or avoiding certain supplements before the test.

How results are reported

Results are typically reported as a number that is compared to a reference range established by the testing laboratory. Reference ranges can differ between laboratories, so your results should be interpreted in the context of the lab's own range.

Before you go

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

Cities

Magnesium RBC Test – Deficiency Testing in New Mexico communities

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

Albuquerque765,693Magnesium RBC Test – Deficiency TestingLas Cruces141,399Magnesium RBC Test – Deficiency TestingRio Rancho102,403Magnesium RBC Test – Deficiency TestingSanta Fe99,439Magnesium RBC Test – Deficiency TestingRoswell48,347Magnesium RBC Test – Deficiency TestingFarmington46,696Magnesium RBC Test – Deficiency TestingHobbs39,476Magnesium RBC Test – Deficiency TestingClovis38,505Magnesium RBC Test – Deficiency TestingSouth Valley36,583Magnesium RBC Test – Deficiency TestingCarlsbad31,525Magnesium RBC Test – Deficiency TestingAlamogordo31,201Magnesium RBC Test – Deficiency TestingGallup21,901Magnesium RBC Test – Deficiency TestingLos Lunas17,072Magnesium RBC Test – Deficiency TestingSunland Park16,488Magnesium RBC Test – Deficiency TestingDeming14,730Magnesium RBC Test – Deficiency TestingChaparral14,098Magnesium RBC Test – Deficiency TestingLos Alamos13,270Magnesium RBC Test – Deficiency TestingLas Vegas13,247Magnesium RBC Test – Deficiency TestingArtesia12,637Magnesium RBC Test – Deficiency TestingNorth Valley12,594Magnesium RBC Test – Deficiency TestingPortales12,151Magnesium RBC Test – Deficiency TestingLovington11,505Magnesium RBC Test – Deficiency TestingEspañola10,492Magnesium RBC Test – Deficiency TestingSilver City9,694Magnesium RBC Test – Deficiency TestingGrants9,208Magnesium RBC Test – Deficiency TestingBernalillo9,049Magnesium RBC Test – Deficiency TestingAnthony8,748Magnesium RBC Test – Deficiency TestingSocorro8,553Magnesium RBC Test – Deficiency TestingCorrales8,488Magnesium RBC Test – Deficiency TestingShiprock8,452Magnesium RBC Test – Deficiency TestingRuidoso7,636Magnesium RBC Test – Deficiency TestingBloomfield7,514Magnesium RBC Test – Deficiency TestingBelen7,374Magnesium RBC Test – Deficiency TestingZuni Pueblo7,012Magnesium RBC Test – Deficiency TestingTaos6,524Magnesium RBC Test – Deficiency TestingAztec6,283Magnesium RBC Test – Deficiency TestingNorth Hobbs6,148Magnesium RBC Test – Deficiency TestingEdgewood6,106Magnesium RBC Test – Deficiency TestingRaton6,082Magnesium RBC Test – Deficiency TestingTruth or Consequences6,078Magnesium RBC Test – Deficiency TestingSanta Teresa6,037Magnesium RBC Test – Deficiency TestingLos Ranchos de Albuquerque5,904Magnesium RBC Test – Deficiency TestingWhite Rock5,716Magnesium RBC Test – Deficiency TestingEldorado at Santa Fe5,419Magnesium RBC Test – Deficiency TestingTucumcari5,221Magnesium RBC Test – Deficiency TestingEl Cerro Mission5,103Magnesium RBC Test – Deficiency TestingCrouch Mesa4,997Magnesium RBC Test – Deficiency TestingLos Chaves4,938Magnesium RBC Test – Deficiency TestingRio Communities4,904Magnesium RBC Test – Deficiency TestingLee Acres4,851Magnesium RBC Test – Deficiency TestingParadise Hills4,442Magnesium RBC Test – Deficiency TestingMeadow Lake4,248Magnesium RBC Test – Deficiency TestingKirtland AFB4,142Magnesium RBC Test – Deficiency TestingHolloman AFB4,128Magnesium RBC Test – Deficiency TestingLa Cienega4,110Magnesium RBC Test – Deficiency TestingBosque Farms4,010Magnesium RBC Test – Deficiency TestingPlacitas3,863Magnesium RBC Test – Deficiency TestingPeralta3,392Magnesium RBC Test – Deficiency TestingChimayo3,208Magnesium RBC Test – Deficiency TestingVado3,199Magnesium RBC Test – Deficiency Testing