CAISS – Head Exam Questions and Answers Updated (Verified Answers)

CAISS – Head Exam Questions and Answers Updated (Verified Answers) 1. What does AIS define as part of the Head ANS Scalp, Skull, Brain, Intracranial Vessels, Cranial Nerves. 2. What makes up the Meninges ? ANS Dura Mater(epidural/subdural), Arachnoid(csf), pia matter(vascular membrane) 3. What are the regions of the brain ? ANS Brain Stem, Cerebellum, Cerebrum 4. What is a Focal Brain Injury ? ANS Space occupying lesion in which the brain will shift or herniate 5. What is a Diffuse Brain Injury ? ANS Global/Widespread damaging affecting con- sciousness 6. In the skull; what does "Compound" mean ? ANS Open Fracture 7. Coding of brain injuries should be done when ? ANS At 24 hours or at initial confirmed diagnosis if later than 24 hours. 8. When can LOC be coded ? ANS When there is convincing evidence of head trauma and the diagnosis is made by a physician. 9. Provider diagnosis the patient with a "Closed Head Injury" how do you code this ? ANS 100099.9; NFS 10. Patient is diagnosed with a Compound Temporal Fracture and laceration of the Temporal Artery. Can you code both injuries ? ANS Yes 11. When is a cranial nerve coded as a laceration ? ANS When there is Total Loss of Nerve Function Paralysis 12. When is a Cranial Nerve coded as a Contusion ? ANS When there is subtotal/par- tial loss of function. Paresis / Palsy 13. What affects the Injury Severity Score of brain lesions ? ANS Size, Location, Multiplicity 14. What does "Closed Cisterns" imply ? ANS Brain Swelling 15. At what age are brain severity injuries adjusted ? ANS 10 & younger 16. If a single fracture involves both base and vault; how do you code ? ANS Code the most severe. If equal