Sodium test cost in Chicago, IL — inpatient
In Chicago-Naperville-Elgin, IL-IN, 40 hospitals list a cash price for sodium blood test as an inpatient: from $4.25 to $136.00, with a median of $32.50. The lowest listed price is at Uchicago Medicine AdventHealth Hinsdale and 3 other hospitals — $28.25 less than the median here. Across Illinois, the median is $49.00 at 113 hospitals.
Cash prices at 40 facilities across 28 cities for code 84295, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Mar 17, 2025 and Apr 1, 2026.
Lowest$4.25Uchicago Medicine AdventHealth Hinsdale + 3 more
Median$32.50half pay less
Highest$136.00in this market
Difference32.0×highest vs lowest
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Chicago-Naperville-Elgin, IL-IN.
median
Lowest $4.25Highest $136.00
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC SODIUM LEVEL | $4.25 | $17.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC SODIUM LEVEL | $4.25 | $17.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC SODIUM LEVEL | $4.25 | $17.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC SODIUM LEVEL | $4.25 | $17.00 | — | 75% | Apr 1, 2026 source file |
| John H. Stroger, Jr. Hospital Chicago, IL · (312) 864-6000 SODIUM BLOOD | $9.10 | $13.00 | $1.35–$25.21 | 30% | — source file |
| Franciscan Health Munster Munster, IN · (219) 922-4200 Assay of Serum Sodium | $12.99 | $61.00 | $3.80–$109.00 | 79% | — source file |
| Presence Saint Joseph Hospital - Chicago Chicago, IL · (773) 665-3000 HC I-STAT NA (SODIUM) | $14.52 | $44.00 | $4.81–$20.43 | 67% | — source file |
| Presence Saint Joseph Hospital - Chicago Chicago, IL · (773) 665-3000 HC SODIUM-SERUM | $14.52 | $44.00 | $4.81–$20.43 | 67% | — source file |
| Franciscan Health Munster Munster, IN · (219) 922-4200 Sodium; Whole Bld | $14.91 | $70.00 | $3.80–$109.00 | 79% | — source file |
| Franciscan Health Dyer Dyer, IN · (219) 865-2141 Assay of Serum Sodium | $16.47 | $61.00 | $4.30–$109.00 | 73% | — source file |
| Franciscan Health Munster Munster, IN · (219) 922-4200 Sodium; Whole Bld 1260 | $21.09 | $99.00 | $3.80–$109.00 | 79% | — source file |
| Franciscan Health Crown Point Crown Point, IN · (219) 757-6100 Assay of Serum Sodium-Nicu | $21.16 | $82.00 | $82.00 | 74% | — source file |
| Franciscan Health Crown Point Crown Point, IN · (219) 757-6100 Assay of Serum Sodium | $21.16 | $82.00 | $82.00 | 74% | — source file |
| Franciscan Health Crown Point Crown Point, IN · (219) 757-6100 Sodium; Whole Bld 1260 | $21.16 | $82.00 | $82.00 | 74% | — source file |
| Franciscan Health Crown Point Crown Point, IN · (219) 757-6100 Sodium; Whole Bld | $21.16 | $82.00 | $82.00 | 74% | — source file |
| Franciscan Health Dyer Dyer, IN · (219) 865-2141 Assay of Serum Sodium-Oh | $22.14 | $82.00 | $4.30–$109.00 | 73% | — source file |
| Franciscan Health Dyer Dyer, IN · (219) 865-2141 Assay of Serum Sodium-Nicu | $22.14 | $82.00 | $4.30–$109.00 | 73% | — source file |
| Franciscan Health Dyer Dyer, IN · (219) 865-2141 Sodium; Whole Bld | $22.14 | $82.00 | $4.30–$109.00 | 73% | — source file |
| Franciscan Health Rensselaer Rensselaer, IN · (219) 866-5141 Sodium; Whole Bld | $22.91 | $64.00 | $4.30–$51.20 | 64% | — source file |
| Franciscan Health Rensselaer Rensselaer, IN · (219) 866-5141 Assay of Serum Sodium | $22.91 | $64.00 | $4.30–$51.20 | 64% | — source file |
| Resilience Healthcare West Suburban Medical Center Oak Park, IL · (708) 383-6200 84295 SODIUM SERUM PLASMA OR WHOLE BLOOD | $29.70 | $87.35 | $56.78 | 66% | Mar 17, 2025 source file |
| La Rabida Children's Hospital Chicago, IL · (773) 363-6700 SODIUM | $31.53 | $31.53 | — | — | Apr 1, 2026 source file |
| La Rabida Children's Hospital Chicago, IL · (773) 363-6700 ISTAT SODIUM | $31.53 | $31.53 | — | — | Apr 1, 2026 source file |
| La Rabida Children's Hospital Chicago, IL · (773) 363-6700 AFT SODIUM STAT | $31.53 | $31.53 | — | — | Apr 1, 2026 source file |
| Advocate Christ Medical Center Oak Lawn, IL · (708) 684-8000 POC SODIUM SERUM | $32.50 | $65.00 | $28.41–$52.00 | 50% | Nov 4, 2025 source file |
| Advocate Trinity Hospital Chicago, IL · (773) 967-5002 POC SODIUM SERUM | $32.50 | $65.00 | $28.41–$52.00 | 50% | Nov 4, 2025 source file |
| Advocate Lutheran General Hospital Park Ridge, IL · (847) 723-2210 POC SODIUM SERUM | $32.50 | $65.00 | $28.41–$52.00 | 50% | Nov 4, 2025 source file |
| Advocate Good Shepherd Hospital Barrington, IL · (847) 381-9600 POC SODIUM SERUM | $32.50 | $65.00 | $28.41–$52.00 | 50% | Nov 4, 2025 source file |
| Advocate Childrens Hospital Oak Lawn Oak Lawn, IL POC SODIUM SERUM | $32.50 | $65.00 | $28.41–$52.00 | 50% | Nov 4, 2025 source file |
| Advocate Sherman Hospital Elgin, IL · (847) 742-9800 POC SODIUM SERUM | $32.50 | $65.00 | $28.41–$58.50 | 50% | Nov 4, 2025 source file |
| Advocate Childrens Hospital Park Ridge Park Ridge, IL POC SODIUM SERUM | $32.50 | $65.00 | $28.41–$52.00 | 50% | Nov 4, 2025 source file |
| Advocate Good Samaritan Hospital Downers Grove, IL · (630) 275-5900 POC SODIUM SERUM | $32.50 | $65.00 | $28.41–$52.00 | 50% | Nov 4, 2025 source file |
| Advocate Condell Medical Center Libertyville, IL · (847) 362-2900 POC SODIUM SERUM | $32.50 | $65.00 | $28.41–$52.00 | 50% | Nov 4, 2025 source file |
| Advocate South Suburban Hospital Hazel Crest, IL POC SODIUM SERUM | $32.50 | $65.00 | $28.41–$52.00 | 50% | Nov 4, 2025 source file |
| Advocate Illinois Masonic Medical Center Chicago, IL · (773) 975-1600 POC SODIUM SERUM | $32.50 | $65.00 | $28.41–$52.00 | 50% | Nov 4, 2025 source file |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Sodium; Serum, Plasma Or Whole Blood-Laf | $43.00 | $43.00 | — | — | Apr 1, 2026 source file |
| Louis A Weiss Memorial Hospital Chicago, IL · (773) 878-8700 Sodium Level | $44.41 | $130.61 | $84.90 | 66% | Mar 17, 2025 source file |
| Resilience Healthcare West Suburban Medical Center Oak Park, IL · (708) 383-6200 Sodium Level | $44.41 | $130.61 | $84.90 | 66% | Mar 17, 2025 source file |
| Advocate Sherman Hospital Elgin, IL · (847) 742-9800 SODIUM SERUM | $45.00 | $90.00 | $39.33–$81.00 | 50% | Nov 4, 2025 source file |
| Advocate Childrens Hospital Oak Lawn Oak Lawn, IL SODIUM SERUM | $45.00 | $90.00 | $39.33–$72.00 | 50% | Nov 4, 2025 source file |
| Advocate Trinity Hospital Chicago, IL · (773) 967-5002 SODIUM SERUM | $45.00 | $90.00 | $39.33–$72.00 | 50% | Nov 4, 2025 source file |
| Advocate Christ Medical Center Oak Lawn, IL · (708) 684-8000 SODIUM SERUM | $45.00 | $90.00 | $39.33–$72.00 | 50% | Nov 4, 2025 source file |
| Advocate Good Samaritan Hospital Downers Grove, IL · (630) 275-5900 SODIUM SERUM | $45.00 | $90.00 | $39.33–$72.00 | 50% | Nov 4, 2025 source file |
| Advocate Condell Medical Center Libertyville, IL · (847) 362-2900 SODIUM SERUM | $45.00 | $90.00 | $39.33–$72.00 | 50% | Nov 4, 2025 source file |
| Advocate South Suburban Hospital Hazel Crest, IL SODIUM SERUM | $45.00 | $90.00 | $39.33–$72.00 | 50% | Nov 4, 2025 source file |
| Advocate Illinois Masonic Medical Center Chicago, IL · (773) 975-1600 SODIUM SERUM | $45.00 | $90.00 | $39.33–$72.00 | 50% | Nov 4, 2025 source file |
| Advocate Childrens Hospital Park Ridge Park Ridge, IL SODIUM SERUM | $45.00 | $90.00 | $39.33–$72.00 | 50% | Nov 4, 2025 source file |
| Advocate Good Shepherd Hospital Barrington, IL · (847) 381-9600 SODIUM SERUM | $45.00 | $90.00 | $39.33–$72.00 | 50% | Nov 4, 2025 source file |
| Advocate Lutheran General Hospital Park Ridge, IL · (847) 723-2210 SODIUM SERUM | $45.00 | $90.00 | $39.33–$72.00 | 50% | Nov 4, 2025 source file |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Sodium; Serum, Plasma Or Whole Blood | $50.00 | $50.00 | — | — | Apr 1, 2026 source file |
| NorthShore University HealthSystems Glenbrook Hospital Glenview, IL R Sodium; Serum (P) | $50.70 | $78.00 | $12.71–$41.73 | 35% | — source file |
| NorthShore University HealthSystems Skokie Hospital Skokie, IL R Sodium; Serum (P) | $50.70 | $78.00 | $12.71–$41.73 | 35% | — source file |
| NorthShore University HealthSystems Skokie Hospital Skokie, IL Sodium I-Stat (P) | $50.70 | $78.00 | $12.71–$41.73 | 35% | — source file |
| NorthShore University HealthSystems Skokie Hospital Skokie, IL Sodium * (P) | $50.70 | $78.00 | $12.71–$41.73 | 35% | — source file |
| NorthShore University HealthSystems Glenbrook Hospital Glenview, IL Sodium * (P) | $50.70 | $78.00 | $12.71–$41.73 | 35% | — source file |
| NorthShore University HealthSystems Glenbrook Hospital Glenview, IL Sodium I-Stat (P) | $50.70 | $78.00 | $12.71–$41.73 | 35% | — source file |
| Northwest Health - Porter Valparaiso, IN · (219) 983-8300 Sodium Serum | $52.92 | $147.00 | $35.28–$123.48 | 64% | Apr 1, 2026 source file |
| Mercyhealth Crystal Lake Hospital & Medical Center Crystal Lake, IL · (792) 220-5500 CHG SODIUM SERUM PLASMA OR WHOLE BLOOD | $52.92 | $70.56 | — | 25% | Mar 1, 2026 source file |
| Northwest Health - Porter Valparaiso, IN · (219) 983-8300 84295 SODIUM,SER PL OR WB | $52.92 | $147.00 | $35.28–$123.48 | 64% | Apr 1, 2026 source file |
| Northwest Health - Porter Valparaiso, IN · (219) 983-8300 .BG Sodium DM Art POC | $52.92 | $147.00 | $35.28–$123.48 | 64% | Apr 1, 2026 source file |
| Mercyhealth Hospital & Medical Center - Harvard Harvard, IL · (815) 943-5431 CHG SODIUM SERUM PLASMA OR WHOLE BLOOD | $54.50 | $72.67 | — | 25% | Mar 1, 2026 source file |
| Swedish Covenant Health Chicago, IL · (773) 878-8200 HB R SODIUM; SERUM (P) | $78.00 | $78.00 | — | — | Apr 1, 2026 source file |
| Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 HB SODIUM * (P) | $78.00 | $78.00 | — | — | Apr 1, 2026 source file |
| Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 HB SODIUM, I-STAT (P) | $78.00 | $78.00 | — | — | Apr 1, 2026 source file |
| Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 HB R SODIUM; SERUM (P) | $78.00 | $78.00 | — | — | Apr 1, 2026 source file |
| Endeavor Health Highland Park Hospital Highland Park, IL HB R SODIUM; SERUM (P) | $78.00 | $78.00 | — | — | Apr 1, 2026 source file |
| Swedish Covenant Health Chicago, IL · (773) 878-8200 HB SODIUM, I-STAT (P) | $78.00 | $78.00 | — | — | Apr 1, 2026 source file |
| Endeavor Health Highland Park Hospital Highland Park, IL HB SODIUM, I-STAT (P) | $78.00 | $78.00 | — | — | Apr 1, 2026 source file |
| Swedish Covenant Health Chicago, IL · (773) 878-8200 HB SODIUM * (P) | $78.00 | $78.00 | — | — | Apr 1, 2026 source file |
| Endeavor Health Highland Park Hospital Highland Park, IL HB SODIUM * (P) | $78.00 | $78.00 | — | — | Apr 1, 2026 source file |
| NorthShore University HealthSystems Glenbrook Hospital Glenview, IL Sodium Emer Csu Lab (P) | $79.95 | $123.00 | $20.05–$65.81 | 35% | — source file |
| NorthShore University HealthSystems Skokie Hospital Skokie, IL Sodium Emer Csu Lab (P) | $79.95 | $123.00 | $20.05–$65.81 | 35% | — source file |
| Northwest Community Hospital Arlington Heights, IL · (847) 618-1000 Hb Sodium, Whole Blood Poct | $81.00 | $81.00 | — | — | Apr 1, 2026 source file |
| Northwest Community Hospital Arlington Heights, IL · (847) 618-1000 Hb Assay Of Serum Sodium | $81.00 | $81.00 | — | — | Apr 1, 2026 source file |
| Ann & Robert H. Lurie Children's Hospital of Chicago Chicago, IL · (312) 227-4000 H SODIUM SERUM PLASMA OR WHOLE BLOOD | $86.10 | $123.00 | $45.51–$3,678.00 | 30% | — source file |
| Ann & Robert H. Lurie Children's Hospital of Chicago Chicago, IL · (312) 227-4000 H SODIUM BLOOD GAS POC | $86.10 | $123.00 | $45.51–$3,678.00 | 30% | — source file |
| Ann & Robert H. Lurie Children's Hospital of Chicago Chicago, IL · (312) 227-4000 H SODIUM BLOOD | $86.10 | $123.00 | $45.51–$3,678.00 | 30% | — source file |
| Ann & Robert H. Lurie Children's Hospital of Chicago Chicago, IL · (312) 227-4000 H SODIUM PLASMA OR SERUM | $86.10 | $123.00 | $45.51–$3,678.00 | 30% | — source file |
| Elmhurst Memorial Hospital Elmhurst, IL · (331) 221-1000 HC SODIUM SERUM PLASMA OR WHOLE BLOOD | $99.00 | $99.00 | — | — | Apr 1, 2026 source file |
| Edward Hospital Naperville, IL · (630) 527-3000 HC SODIUM SERUM PLASMA OR WHOLE BLOOD | $99.00 | $99.00 | — | — | Apr 1, 2026 source file |
| Jackson Park Hospital Foundation Chicago, IL · (773) 947-7500 SODIUM SERUM | $117.04 | $146.30 | — | 20% | — source file |
| Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 HB SODIUM,EMER,CSU LAB (P) | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
| Endeavor Health Highland Park Hospital Highland Park, IL HB SODIUM,EMER,CSU LAB (P) | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
| Swedish Covenant Health Chicago, IL · (773) 878-8200 HB SODIUM,EMER,CSU LAB (P) | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
| Uchicago Medicine Northwest Indiana Crown Point, IN · (312) 755-4706 HC SODIUM; SERUM, PLASMA OR WHOLE BLOOD | $136.00 | $136.00 | — | — | Apr 1, 2026 source file |
| Ingalls Memorial Hospital Harvey, IL · (708) 333-2300 Hc Sodium; Serum, Plasma Or Whole Blood | $136.00 | $136.00 | — | — | Apr 1, 2026 source file |
Inpatient: lowest $4.25, median $32.50, highest $136.00 — a 32.0× difference within the same market.
As an outpatient, the same code is billed by 63 facilities here, median $32.50 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 21 of 23 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 3 it is 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 sodium test measures the level of sodium in the blood. It is used for confusion, weakness, dehydration and for people on diuretics or with heart, kidney or liver disease.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.