Magnesium test cost in Trenton, NJ
In Trenton-Princeton, NJ, 2 hospitals list a cash price for Magnesium blood test: from $50.00 to $50.00, with a median of $50.00. The lowest listed price is at Capital Health System Inc and 1 other hospital. Across New Jersey, the median is $7.71 at 37 hospitals.
Cash prices at 2 facilities across 2 cities for code 83735, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Jun 24, 2026 and Jun 24, 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 Trenton-Princeton, NJ.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Capital Health System Inc lowest Trenton, NJ KIDNEY STONE/URINE SAT P8 | $50.00 | $50.00 | $2.14–$42.50 | — | Jun 24, 2026 source file |
| Capital Health System Inc lowest Pennington, NJ KIDNEY STONE/URINE SAT P8 | $50.00 | $50.00 | $2.14–$42.50 | — | Jun 24, 2026 source file |
| Capital Health System Inc Trenton, NJ LITHOLINK P8 | $101.00 | $101.00 | $4.31–$85.85 | — | Jun 24, 2026 source file |
| Capital Health System Inc Pennington, NJ LITHOLINK P8 | $101.00 | $101.00 | $4.31–$85.85 | — | Jun 24, 2026 source file |
| Capital Health System Inc Trenton, NJ MAGNESIUM 24HR URINE | $133.00 | $133.00 | $4.50–$113.05 | — | Jun 24, 2026 source file |
| Capital Health System Inc Pennington, NJ MAGNESIUM 24HR URINE | $133.00 | $133.00 | $4.50–$113.05 | — | Jun 24, 2026 source file |
| Capital Health System Inc Pennington, NJ MAGNESIUM, 24HR URINE | $172.00 | $172.00 | $4.50–$146.20 | — | Jun 24, 2026 source file |
| Capital Health System Inc Trenton, NJ MAGNESIUM, 24HR URINE | $172.00 | $172.00 | $4.50–$146.20 | — | Jun 24, 2026 source file |
| Capital Health System Inc Trenton, NJ MAGNESIUM FLUID | $196.00 | $196.00 | $4.50–$166.60 | — | Jun 24, 2026 source file |
| Capital Health System Inc Pennington, NJ MAGNESIUM FLUID | $196.00 | $196.00 | $4.50–$166.60 | — | Jun 24, 2026 source file |
| Capital Health System Inc Pennington, NJ MAGNESIUM | $307.00 | $307.00 | $4.50–$260.95 | — | Jun 24, 2026 source file |
| Capital Health System Inc Trenton, NJ MAGNESIUM | $307.00 | $307.00 | $4.50–$260.95 | — | Jun 24, 2026 source file |
| Capital Health System Inc Trenton, NJ STOOL F/CATHARDIC LAXA P2 | $450.00 | $450.00 | $4.50–$382.50 | — | Jun 24, 2026 source file |
| Capital Health System Inc Pennington, NJ STOOL F/CATHARDIC LAXA P2 | $450.00 | $450.00 | $4.50–$382.50 | — | Jun 24, 2026 source file |
| Capital Health System Inc Pennington, NJ RBC-MAGNESIUM | $450.00 | $450.00 | $4.50–$382.50 | — | Jun 24, 2026 source file |
| Capital Health System Inc Trenton, NJ RBC-MAGNESIUM | $450.00 | $450.00 | $4.50–$382.50 | — | Jun 24, 2026 source file |
Outpatient: lowest $50.00, median $50.00, highest $50.00.
As an inpatient, the same code is billed by 2 facilities here, median $50.00. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 0 of 2 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. 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.