I suggest dividing All injuries into minor, moderate, and major, the former two being able to be treated in the field and latter in the medbay/clinic/hospital:
Minor: Bruises
Symptoms/effects- pain
How: blunt damage, from unarmed combat, minor falls etc
Treatment: Analgesic/anti-inflammatory Hyposprays, Ice-packs
Moderate: concussion, limb and peripheral fractures, hematomas in peripheral areas like ear
Symptoms/effects-
Concussion- nausea echoes, sluggish reflexes, disorientation. May require monitoring to differentiate from the more serious intracranial hematoma
Limb fractures- could apply various effects such as reduced dexterity, inability to walk etc depending on location. Revealed on general exam and questioning patient, but pulse tests and reflex tests do not reveal anything awry.
Peripheral hematoma-Pain. May lead to infection if not drained. Revealed by examination, but pulse and reflex tests remain normal.
How: tiny chance of occurring during unarmed combat, uncommon chance from falls and tiny explosions
Treatment: Rest for concussion, a futuristic mesh cast for limb fractures like this : Cast21: The Revolutionary Technology for Treating Broken Bones
In the case of peripheral hematomas, a vacuum drain, similar in function to a vacutainer IRL, that draws out the blood and relives pressure and pain.
Major: Intracranial hematoma, rib fractures, spine fractures etc
Symptoms/effects:
Intracranial hematoma- nausea (the patient can receive echoes about it),
Bouts of seizures that can incapacitate, slowed reflexes. Differentiated from Concussion by eventual seizures and bouts of loss of consciousness. Maybe detected quicker via scans when scanners are coded.
Rib Fractures- Pain echoes, breathing trouble echoes, general exam may reveal uneven movement of chest wall on breathing, but reflex and pulse tests are normal.
Spine fractures: paralysis, cardiac and lung failure needing artificial ventilation until damage is repaired. Serious emergency. Reflex tests are all very, very subdued, or absent, depending. Abnormal pulse and heart failure chance. Defibrillation and chest compression may be needed.
How: Major falls, big explosions
Treatment- Emergency procedures/surgery at Medbay, with CPR occuring earlier if needed