4. Using the vital-signs costing system, calculate the hospital-wide rate based on the number of vital signs checks. $fill in the blank 5 per vital signs check 5. Calculate the amount of nursing costs that the vital-signs costing system assigns to the ER and to the OR. The vital-signs cost, assigned to the ER $fill in the blank 6 The vital-signs cost, assigned to the OR $fill in the blank 7 6. Using the results from Requirement 5, calculate the cost per OR nursing hour under the vital-signs costing system. $fill in the blank 8 per OR hour