A hard hit is not the only reason to act. An athlete who seems unusually quiet after a routine fall, reports a headache on the bus ride home, or cannot recall the last play may have a concussion even if they never lost consciousness. Knowing how to screen for concussion gives school sports programs a consistent way to recognize concern early, remove the athlete from risk, and start the right care process.
A sideline screen is not a diagnosis. It is a structured check designed to identify signs, symptoms, and red flags that require urgent action or medical evaluation. For athletic trainers, coaches, and school administrators, the goal is straightforward: protect the athlete first, document what happened, and ensure no one makes a return-to-play decision based on guesswork or pressure from the game.
Start With Immediate Removal From Play
When concussion is suspected, remove the athlete from play immediately. Do not wait for symptoms to worsen, and do not allow an athlete to “test it out” for another series, shift, or quarter. A concussion can occur from a direct blow to the head or from a hit to the body that causes the head and brain to move rapidly.
The athlete should be supervised and kept out of any activity with risk of another impact. This includes competition, practice drills, conditioning, and physical education when applicable. In youth and collegiate settings, same-day return after suspected concussion should not be treated as an option. Organizational policy, state law, and the evaluating clinician’s guidance may add specific requirements, but immediate removal is the essential first step.
The person who witnessed the incident should record what they saw while details are fresh: the mechanism of injury, whether the athlete appeared confused or unsteady, any loss of consciousness, and whether symptoms began immediately or developed later. Video, if available through normal team operations, can help medical personnel understand the mechanism, but it does not replace an assessment.
Check for Emergency Warning Signs First
Before conducting a routine concussion screen, assess whether the athlete needs emergency medical care. Activate emergency response procedures for red flags such as worsening or severe headache, repeated vomiting, seizure or convulsion, increasing confusion, unusual behavior, weakness or numbness, slurred speech, unequal pupils, neck pain with concerning symptoms, or declining level of consciousness.
Other urgent concerns include an athlete who cannot be awakened, becomes increasingly drowsy, is very agitated, or has signs of a possible skull or cervical spine injury. If spinal injury is suspected, avoid unnecessary movement and follow the organization’s emergency action plan.
This distinction matters operationally. A concussion screening workflow should never delay emergency response. Staff need a simple path for documenting the event, notifying the appropriate contacts, and recording that emergency services or a higher level of care was recommended or activated.
How to Screen for Concussion on the Sideline
Once emergency red flags have been ruled out, a trained healthcare professional can use a standardized sideline assessment. The assessment should combine the athlete’s report with observable findings. Athletes may minimize symptoms because they want to continue playing, so a screen cannot rely on one question such as, “Do you feel okay?”
Begin by asking what happened and comparing the account with observations from coaches, teammates, or staff. Ask about headache, dizziness, nausea, sensitivity to light or noise, blurred vision, fatigue, feeling slowed down, difficulty concentrating, irritability, sadness, and sleep changes. Symptoms may appear immediately, but they can also emerge over the following hours or days.
Observe the athlete’s speech, balance, coordination, facial expression, and behavior. Look for a blank or dazed appearance, delayed responses, confusion about score or game situation, clumsiness, or a change from the athlete’s typical demeanor. An athlete who says they feel “off” deserves the same careful response as one with more obvious signs.
When available and administered by appropriately trained personnel, tools such as the SCAT6 can support a standardized acute assessment for athletes age 13 and older. The Child SCAT6 is intended for children ages 8 to 12. These tools guide symptom review, cognitive tasks, neurological observations, and balance assessment. They support clinical judgment, but they do not independently diagnose concussion or clear an athlete to return to sport.
Balance testing can also add useful information, especially when it is part of an established program. However, fatigue, lower-extremity injury, anxiety, and environmental conditions can affect performance. Results should be interpreted in context, not treated as a pass-fail test.
Use Baseline Results Carefully
Preseason baseline neurocognitive and balance testing can provide a reference point when an injury occurs. It may help clinicians understand how an athlete is functioning relative to their usual performance. Still, baseline scores are only one piece of the clinical picture.
A normal-looking baseline comparison does not override symptoms, observed deficits, or a concerning injury mechanism. Likewise, an athlete may have a lower-than-expected baseline result for reasons unrelated to concussion, including poor effort, learning differences, sleep deprivation, or language barriers. Programs should avoid using baseline testing as a shortcut to clearance.
The practical value of a baseline program comes from consistency: clear instructions, secure records, valid administration, and access to results when they are needed. A centralized platform helps ensure the clinician evaluating an athlete is not searching through email attachments or paper files during a time-sensitive decision.
Document the Screen and Notify the Right People
A concussion response can break down after the athlete leaves the sideline if information remains scattered. Document the incident, symptoms reported, observed signs, assessment components used, actions taken, and referral recommendation. Record the time of injury and the time of each follow-up assessment when possible.
Communication should be prompt and role-specific. Parents or guardians need clear instructions on what symptoms to monitor, when to seek emergency care, and why the athlete must avoid sports participation until medically cleared. Coaches need to know the athlete’s activity restriction without receiving unnecessary medical details. School nurses, counselors, teachers, and academic staff may need notice that the student could require temporary classroom adjustments.
For multi-team organizations, centralized digital documentation reduces the risk that one staff member assumes someone else made the call. It also creates an auditable record of injury reporting, parent notification, clinical notes, and progression through recovery requirements. Tools such as XLNTBrain can bring sideline assessments, symptom tracking, communication, and return-to-play workflows into one organized record rather than leaving critical information across texts, forms, and spreadsheets.
Screening Does Not End After the Game
A single sideline assessment is a snapshot. Symptoms can change, particularly during the first 24 to 48 hours. The athlete should receive appropriate medical evaluation and follow the care plan established by a qualified healthcare professional experienced in concussion management.
Programs should have a defined follow-up process for daily or scheduled symptom tracking, academic supports, clinical reassessment, and progressive return to activity. Recovery is individual. Some athletes improve quickly, while others need more time, especially if symptoms are significant, there is a history of prior concussions, or school demands aggravate symptoms.
Return-to-learn and return-to-play should be managed as connected but separate processes. An athlete may be ready for more classroom activity before they are ready for contact practice, or they may need temporary academic adjustments even as physical symptoms improve. No coach, parent, or athlete should feel responsible for making a medical clearance decision outside the established protocol.
Build a Screening Process That Works Under Pressure
The best concussion protocol is the one staff can follow on a crowded sideline, during an away game, and after normal school hours. That means assigning roles before the season, training staff to recognize symptoms, maintaining access to emergency contacts and assessment tools, and establishing exactly who communicates with families and treating clinicians.
Paper forms can work in limited situations, but they are easy to lose, difficult to share securely, and hard to audit across multiple teams. A digital process improves consistency by guiding staff through the same steps, preserving time-stamped documentation, and making recovery status visible to authorized stakeholders.
When an athlete may have a concussion, the immediate decision is not whether they can finish the game. It is whether your program can confidently protect them, communicate clearly, and support every step that follows.
