Magnesium test cost in Lafayette, LA — inpatient
In Lafayette, LA, 2 hospitals list a cash price for magnesium blood test as an inpatient: from $13.05 to $30.15, with a median of $21.60. The lowest listed price is at Acadian Medical Center — $8.55 less than the median here. Across Louisiana, the median is $27.36 at 28 hospitals.
Cash prices at 2 facilities across 2 cities for code 83735, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between Jun 9, 2026 and Jun 9, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Lafayette, LA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Acadian Medical Center lowest Eunice, LA · (337) 580-7903 MAGNESIUM FECAL | $13.05 | $43.50 | $5.36–$203.50 | 70% | Jun 9, 2026 source file |
| Acadian Medical Center Eunice, LA · (337) 580-7903 MAGNESIUM BLD | $24.00 | $80.00 | $5.36–$203.50 | 70% | Jun 9, 2026 source file |
| Acadian Medical Center Eunice, LA · (337) 580-7903 MAGNESIUM URINE | $24.00 | $80.00 | $5.36–$203.50 | 70% | Jun 9, 2026 source file |
| Acadian Medical Center Eunice, LA · (337) 580-7903 ASSAY OF MAGNESIUM | $24.00 | $80.00 | $5.36–$203.50 | 70% | Jun 9, 2026 source file |
| Acadia St Landry Church Point, LA · (337) 684-5435 MAGNESIUM | $30.15 | $40.20 | — | 25% | — source file |
| Acadia St Landry Church Point, LA · (337) 684-5435 MAGNESIUMRBC SERUM | $30.15 | $40.20 | — | 25% | — source file |
| Acadia St Landry Church Point, LA · (337) 684-5435 MAGNESUIM 24 HR URINE | $30.15 | $40.20 | — | 25% | — source file |
| Acadia St Landry Church Point, LA · (337) 684-5435 LABCORP MAGNESIUM | $33.75 | $45.00 | — | 25% | — source file |
| Acadia St Landry Church Point, LA · (337) 684-5435 MAGNESIUM, RBC | $97.13 | $129.50 | — | 25% | — source file |
Inpatient: lowest $13.05, median $21.60, highest $30.15 — a 2.3× difference within the same market.
As an outpatient, the same code is billed by 2 facilities here, median $21.60 — that is the price to compare if you are not being admitted.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is below the highest rate a health plan has negotiated. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
A magnesium test measures the level of magnesium in the blood. Doctors order it for muscle cramps or weakness, an irregular heartbeat, low potassium or calcium that does not correct, and for people on diuretics, long-term acid-reducing drugs or with kidney disease.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.