INSTANT 2025 – Answers to Practice Test Questions

Answers to COS-C Exam Practice Test Questions found in the INSTANT OASIS Answers 2025 Edition:

  1. (B) 1 – Yes
  2. (B) M1311E2 = 0
  3. (B) Code 09 – Not Applicable
  4. (C) 9 – NA 
  5. (D) A SOC OASIS (RFA 1) may be required by the payer, but a Discharge OASIS (RFA 9) should not be collected or submitted
  6. (C) Code 02 – Substantial/maximal assistance
  7. (A) Code 0 – No, because the patient has not received the recommended COVID-19 vaccine
  8. (C) Code 09 – Not applicable
  9. (C) M1311B1. Stage 3 = 1
  10. (D) Code 05 – Setup or clean-up assistance
  11. (A) Code J1900A = 0, J1900B = 1, J1900C = 0
  12. (B) 1 – Grooming utensils must be placed within reach before able to complete grooming activities
  13. (A) 0. No – No issues found during review
  14. (B) Code 0 – No, because the patient’s vaccination status cannot be determined
  15. (A) Code 06 – Independent
  16. (D) M1311E1. Unstageable:  Slough and/or eschar = 1
  17. (C) D0150A1 = 9 and D0150A2 = blank; D0150B1 = dash and D0150B2 = blank 
  18. (C) 2 – Requires use of a two-handed device (for example, walker or crutches) to walk alone on a level surface and/or requires human supervision or assistance to negotiate stairs or steps or uneven surfaces
  19. (B) 2 – Sometimes
  20. (A) C1 – Oxygen Therapy, C2 – Continuous
  21. (C) Medications should be coded in N0415 – High-Risk Drug Classes according to the therapeutic category and/or classification regardless of why the patient is taking the medication.
  22. (A) D – Therapeutic diet
  23. (C) A home health patient is discharged from home care services to receive hospice care in their home.
  1. (D) C1310A – 1, Yes

            C1310B – 2, Behavior present, fluctuates 

                C1310C – 0, Behavior not present 

                C1310D – 2, Behavior present, fluctuates 

  1. (A) C0200 – 3 

                 C0300A – 0 

                 C0300B – 2 

                 C0300C – 1 

                 C0400A – 2 

                 C0400B – 2 

                 C0400C – 2 

                 C0500 – 12 

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