| Illustrative stage | Calculation | Planning consequence |
|---|---|---|
| Initial inpatient estimate: $2,000–$3,000 | 75% of $3,000 = $2,250 minimum under the published baseline. | A $500 insurance deductible would not make the initial deposit $500. |
| Revised estimate: $3,000–$4,000 | 75% of $4,000 = $3,000 at the same baseline. | Relative to the initial $2,250 deposit, another $750 would reach that amount. |
| Final invoice and insurance review | Use actual charges, eligibility and policy calculation. | Deposit payments are credited by the clinic; they are not extra medical charges. |
The dollar estimates are invented to show the arithmetic, not a quote from Ohio State or an expected dog-treatment cost. The hospital determines the actual deposit and may require more. Ask how it will communicate revisions and what consent is needed before additional work.
For the eventual claim, keep the final invoice and payment record. Do not add the deposit to the invoice total a second time when estimating the overall expense. Ask the insurer which services qualify and what it still needs to determine payment.