Magnesium test cost in Marietta, OH
In Marietta, OH, 2 hospitals list a cash price for magnesium blood test: from $30.18 to $40.24, with a median of $35.21. The lowest listed price is at Selby General Hospital — $5.03 less than the median here. Across Ohio, the median is $33.30 at 100 hospitals.
Cash prices at 2 facilities for code 83735, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 21, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 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 Marietta, OH.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Selby General Hospital lowest Marietta, OH · (740) 568-2000 Magnesium | $30.18 | $50.30 | — | 40% | Apr 1, 2026 source file |
| Selby General Hospital lowest Marietta, OH · (740) 568-2000 Magnesium,24Hr Urine | $30.18 | $50.30 | — | 40% | Apr 1, 2026 source file |
| Selby General Hospital lowest Marietta, OH · (740) 568-2000 Magnesium Random Urine | $30.18 | $50.30 | — | 40% | Apr 1, 2026 source file |
| Selby General Hospital lowest Marietta, OH · (740) 568-2000 Ionized Magnesium | $30.18 | $50.30 | — | 40% | Apr 1, 2026 source file |
| Marietta Memorial Hospital Marietta, OH · (740) 374-1400 Magnesium | $40.24 | $67.06 | — | 40% | Apr 1, 2026 source file |
| Marietta Memorial Hospital Marietta, OH · (740) 374-1400 Magnesium,24Hr Urine | $40.24 | $67.06 | — | 40% | Apr 1, 2026 source file |
| Marietta Memorial Hospital Marietta, OH · (740) 374-1400 Magnesium Random Urine | $40.24 | $67.06 | — | 40% | Apr 1, 2026 source file |
| Marietta Memorial Hospital Marietta, OH · (740) 374-1400 Ionized Magnesium | $40.24 | $67.06 | — | 40% | Apr 1, 2026 source file |
Outpatient: lowest $30.18, median $35.21, highest $40.24 — a 1.3× difference within the same market.
As an inpatient, the same code is billed by 2 facilities here, median $35.21. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
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.