AT Exam Prep: Lower Extremities, ICF & PROs, Emergency Care & Hemorrhage Simulations

Lower Extremities & Chapter Context (AT/BOC prep framing)
  • Instructor overview and test strategy
    • Expect many textbook-style questions from the test bank; the instructor is building his own questions after previous ones were deleted.
    • He writes BOC-style questions (ungraded) for practice; rewords questions if many students miss them; emphasizes open communication and review of textbook bays.
    • Tests will include one-chapter topics but with thorough, content-heavy questions (especially anatomy, palpation).
    • Quizzes opened/closed on specific dates; accommodations and feedback are emphasized (especially for short answers).
    • Emphasis on multiple formats: multiple choice, select all that apply, and occasional short answers to force reasoning.
  • Study guidance (philosophical/ethical points)
    • Read chapters 1–10; active learning (participation, questions). Pace of study and use of PowerPoints recommended for alignment with chapter content.
    • Practical hands-on skills matter: palpation, myotomes, dermatomes, reflexes, etc.
    • If accommodations are needed (e.g., testing accommodations), the Disability Resource Center on campus should handle documentation; BOC transfers accommodations.
  • Practical tips on administering exams
    • The instructor may reuse class activities and review items; differential exam formats (select all that apply vs “except” questions) to improve test quality.
    • He may reopen quizzes or extend deadlines if COVID/transport/time conflicts occur; communicate needs for extensions.
  • Reflection on exam creation & feedback
    • Feedback is meant to guide improvement, especially on short answers; he aims to provide targeted notes to help students reason through why a given option is correct.
    • He discusses the goal of achieving 80% competency as a passing standard in simulations; remediation available one-on-one to reach competency.
Chapter 8: Lower Extremities – Myotomes, Dermatomes, and Practical Assessments
  • Quick review of myotomes and dermatomes
    • Myotomes: movements tested to assess nerve root function (e.g., hip flexion, knee extension, dorsiflexion, toe movements, ankle eversion).
    • Dermatomes: sensory map testing corresponding to nerve roots.
    • Practical demo: tests are similar to brake test style moves (e.g., hip flexion with resistance, hip extension, knee flexion/extension, dorsiflexion, EHL of the big toe).
  • Testing flow and nerve-root application
    • If sensory loss (dermatomes) and motor weakness (myotomes) align along the same nerve path, suspect a nerve root issue.
    • If strength is normal but sensation is decreased in the same region, peripheral nerves may be involved rather than the nerve root.
    • Dermatomes, myotomes, and reflexes (superficial and deep tendon) are essential for exam; test all to be test-ready.
  • Application exercise
    • Students practice matching dermatome and myotome findings to a clinical scenario (e.g., radiating pain down the lateral thigh to the dorsum of the foot).
    • Chart reference: use the textbook chart for dermatomes/myotomes; stick to textbook conventions for assessment questions.
  • Practical tips & formats
    • Differentiation between nerve root pathology vs peripheral nerve injury is key; use the chart and nerve pathway logic.
    • Refer to the chart for which reflexes align with specific myotomes/dermatomes; memorize/understand the mapping.
  • Functional assessment context
    • Final quick-activity: diagnosis based on a scenario with myotome/dermatome matching; then select one patient-reported outcome measure (PROM) for the patient.
ICF Model & Patient-Reported Outcome Measures (PROs) (Chapter 10 emphasis)
  • ICF model overview
    • International Classification of Functioning, Disability and Health (ICF) model used to frame patient care.
    • Key components:
    • Health condition (diagnosis)
    • Impairments (body function/structure problems)
    • Activity limitations (what the patient cannot do)
    • Participation restrictions (involvement in life situations)
    • Environmental factors (external context affecting function)
    • Personal factors (age, previous injuries, psychosocial aspects)
    • Example: ankle sprain
    • Impairments: pain, swelling, ROM deficits
    • Activity limitations: walking, running, stair navigation
    • Participation restrictions: missing practice or games
    • Environmental factors: accessibility, insurance, transportation
    • Personal factors: age, prior ankle injuries
    • Purpose: guide rehab planning to restore function and participation, not just fix a body part.
  • How to use the ICF in practice
    • Gather data via history, clinical assessment, and functional observation.
    • Create rehab plan to address each domain (impairments, activity limitations, participation restrictions).
    • Consider environmental and personal factors to optimize return to sport/work/education.
  • Patient-Reported Outcomes (PROs/PROMs)
    • PROs: patient-reported outcome measures; questionnaires that quantify the patient’s perceived impact on daily life.
    • PROMs vs clinician-reported outcomes (CROs): PROs come from patient input; CROs come from clinician assessment (ROM, MMT, stress tests).
    • PROM types:
    • Disease-specific: focus on a disease (e.g., asthma-specific questionnaires).
    • Region-specific: focus on a body region (e.g., knee, ankle). Often used in AT/PT settings.
    • Dimension-specific: address symptoms like fatigue, pain, sleep, anxiety, etc.
    • Generic: broad health-related quality of life (HRQoL) measures (SF-12, SF-36).
    • Single-item measures: quick, one-question metrics.
    • Scoring framework
    • Scores are numeric; higher scores can indicate more disability or better health depending on the measure (must know the directionality for each PROM).
    • Generic HRQoL tools often require interpretation across physical, psychological, and social domains.
    • Examples commonly used in AT/PT:
    • LEFS (Lower Extremity Functional Scale)
    • SF-12 (short form health survey)
    • ACL readiness or ACL-specific PROMs
    • Practical implementation
    • Use a mix of regional (e.g., knee/ankle) + generic PROMs for comprehensive HRQoL data.
    • Administer PROMs before and after treatment to assess treatment effect and guide plan adjustments.
    • Technology can auto-score PROMs online and provide a report—but remember to reset tools to avoid saved responses.
  • Activity-based and region-specific PROMs
    • FAM-LEFS, SF-12, and ACL readiness are highlighted as common, practical PROMs in AT clinics.
    • When choosing PROMs, use a concise set (region-specific + generic) to avoid overburdening patients.
  • Implementation & clinical workflow
    • PROMs should inform treatment goals and reflect the patient’s daily life and sport participation.
    • Regular reassessment with PROMs helps track progress and adjust rehabilitation plans.
    • Emphasize ethical use: PROMs are part of holistic care; if sensitive topics (sleep, mental health, social factors) arise, consider referrals (PT, psychology, social work).
Functional Assessment & Practical Clinical Concepts
  • Functional assessment: what and why
    • Evaluate functional tasks relevant to daily living and sport (e.g., sit-to-stand, squats, gait, stair negotiation).
    • Functional testing complements ROM and strength testing to reveal how impairments affect real-world function.
    • In rehab contexts (e.g., ACL rehab), functional testing becomes central to return-to-play decisions.
  • Functional assessment examples described
    • Simple tasks like a single squat or a timed task to assess dynamic movement strategies.
    • Observe coordination between hip, knee, and ankle joints during tasks; identify compensations.
  • Myotomes/dermatomes in practical settings
    • The instructor emphasizes sticking to textbook references for exam purposes; avoid over-reliance on external internet sources during testing.
  • Test-taking strategy for lower extremities
    • Understanding nerve paths helps interpret deficits: if multiple dermatomes or myotomes are affected along a nerve route, consider root-level pathology; if isolated distal deficits, peripheral nerve involvement is more likely.
Chapter 9: Emergency Care Essentials (Vitals, Airways, and Simulation Review)
  • Terminology: ventilation, respiration, oxygenation, perfusion
    • Ventilation: movement of air in/out of the lungs (positive-pressure ventilation via bag-valve mask in emergencies).
    • Oxygenation: loading of oxygen onto hemoglobin in blood.
    • Perfusion: distribution of oxygenated blood to tissues; capillary refill is a quick test of perfusion.
    • Respiration (diffusion): gas exchange at the alveoli level.
  • Pulse assessment locations and normal values
    • Common pulse sites: carotid (UNRESPONSIVE patients), radial (when patient is awake and stable), femoral (groin region).
    • Normal vital signs (adult):
    • extHRo60ext–100extbpmext{HR} o 60 ext{–}100 ext{ bpm}
    • extRRo12ext–20extbreaths/minext{RR} o 12 ext{–}20 ext{ breaths/min}
    • Blood pressure around 120/80extmmHg120/80 ext{ mmHg} is typical; “unicorn” readings (e.g., perfect 120/80) are rare in practice.
  • Blood pressure measurement basics (manual method)**
    • Palpate brachial artery in the antecubital fossa to estimate systolic pressure.
    • Inflate cuff to ~180 mmHg or until pulsation is lost; then deflate slowly while listening with a stethoscope.
    • Inflate cuff 30 mmHg above estimated systolic pressure to avoid auscultatory gap (common in hypertension).
    • Auscultatory gap: silent period during auscultation; watch the gauge for the first Korotkoff sound (systolic).
    • Use appropriate cuff size; ensure stethoscope is properly positioned; ensure the patient is comfortable and still to avoid artifacts.
    • Common errors: improper cuff size, moving stethoscope, misplacing the ear pieces, turning the stethoscope diaphragm away from the ear canal.
  • Respiratory assistance and oxygen delivery
    • If the patient is not ventilating adequately or is apneic, provide bag-valve-mask ventilation (positive pressure).
    • If patient is breathing but with impaired oxygenation, apply oxygen (non-rebreather mask suitable for higher FiO2 when available).
  • Airway management basics (OPA/NPA) and contraindications
    • OPA (oropharyngeal airway) is placed in unconscious patients without a gag reflex to maintain an airway; put in before bagging.
    • NPA (nasopharyngeal airway) can be used when gag reflex is present; consider nasal anatomy and possible trauma.
    • Jaw-thrust maneuver emphasized for suspected cervical spine injury when opening the airway.
  • Spinal precautions and airway management
    • In suspected spinal injuries, avoid excessive neck movement; use jaw-thrust or controlled airway maneuvers with inline stabilization.
    • Spinal motion restriction approaches have evolved: soft stretchers, scoop stretchers, and cautious handling rather than rigid backboards in some settings.
  • AED (Automated External Defibrillator) operation basics
    • Do not turn off the AED mid-resuscitation; always ensure scene safety and that no one interferes during defibrillation.
    • Clear the patient and bystanders before shocking; monitor rhythm and follow the device prompts.
    • Time to shock: aim to deliver defibrillation rapidly, ideally within ~2 minutes from recognition of cardiac arrest.
  • Cardiac arrest in athletic settings – key reminders
    • Early CPR and early defibrillation drastically improve outcomes.
    • Ensure someone is responsible for calling EMS and retrieving the AED; maintain a rapid, organized approach to CPR and defibrillation.
    • Post-defibrillation care includes continuing CPR if indicated and ensuring no one stands in the way during shocks.
  • Shock management principles in hemorrhage scenarios
    • All patients with suspected hemorrhage should be managed for potential shock (oxygen, lying flat, warm and comfortable) to maintain perfusion.
  • Practical differences in exercise and real-world settings
    • Real-life simulation acknowledges that no setup is perfect; some variability in patient response and execution is expected.
    • The instructor stresses the need for verbalizing actions during simulations to validate understanding and performance.
Hemorrhage Management Simulation (External vs Internal, Practical Bleeding Control)
  • External hemorrhage: definition and initial steps
    • Bleeding from outside the skin; common in trauma or blunt/penetrating injuries; potential for arterial vs venous bleeding.
    • Immediate steps:
    • PPE and gloves
    • Identify source, location, and extent of bleeding
    • Direct pressure with gauze; apply multiple layers if needed; elevation can help
    • If direct pressure fails, escalate to pressure points (historical) or tourniquet for arterial bleeds
  • Venous bleed (non-arterial signs)
    • Presentation: dark, slower bleeding; not pulsatile
    • Management: direct pressure, gauze, elevation, layering, and wound care
    • When to escalate: persistent bleeding or large wounds -> consider hemostatic gauze/agents
  • Hemostatic agents and wound packing
    • Hemostatic gauze (e.g., QuickClot) applied directly to wound with sustained pressure; may require additional gauze layers
    • In larger or deep wounds, consider wound packing to fill the cavity then apply direct pressure on top
    • Availability of stop-the-bleed kits on campus; use of hemostatic powders/agents as adjuncts
  • Tourniquets for arterial bleeds
    • Indication: arterial bleeding where direct pressure cannot control bleeding or is insufficient
    • Placement: high and tight, typically 2 inches (or more) above the joint; must occlude arterial flow
    • Time factor: note the time the tourniquet was applied; discuss that tourniquets can stay on for hours; patient transport to definitive care is essential
    • Training reminder: avoid placing near joints where compression will be ineffective; place where underlying muscles allow arterial compression against a bone
  • Arterial bleed recognition and management
    • Signs: bright red, pulsatile bleeding; brisk bleeding, spurting
    • Immediate action: apply tourniquet high on the limb; tighten until there is no distal pulse
  • Wound care basics and irrigation
    • Wound irrigation recommended at 15–25 PSI to reduce infection risk and remove contaminants
    • Use sterile saline if available; irrigate before dressing when feasible
  • Shock management in bleed scenarios
    • All hemorrhagic patients should be managed for hypovolemic shock: lie them flat, provide oxygen, keep them warm, and monitor continually until EMS arrives
  • Summary of practical decision-making in the hemorrhage scenario
    • Determine bleed type (venous vs arterial)
    • Use direct pressure first; escalate to tourniquet for arterial bleeds or when direct pressure fails
    • Consider hemostatic gauze as adjuncts; pack wounds as needed
    • Ensure oxygen delivery and temperature management to support perfusion
    • Document time of tourniquet application and ensure rapid transport to definitive care
Synthesis: Skills, Competencies, and Next Steps
  • Competency expectations
    • The course emphasizes 80% competency as the passing threshold in simulations; remediation opportunities available with one-on-one coaching.
    • Students should be able to perform both the technical tasks and the communication/verification aspects (verbalizing steps, scene assessment, etc.).
  • Simulation logistics and grading notes
    • Some simulations may be repeated or reviewed; the instructor emphasizes learning from mistakes and practicing the steps in real-time with peers.
    • Feedback is constructive and aimed at improving clinical reasoning and practical execution, not punitive grading.
  • Schedule overview and upcoming simulations
    • Week-by-week plan includes: internal/external hemorrhage (week 5), NTBI (neurotrauma/brain injury) focus (week 7), heat illness (week 10), anaphylaxis (week 13), with some remaining tasks in spring.
    • Students should prepare by reviewing slides, charts, and flowcharts provided in canvas; anticipate practical demonstrations and hypothetical scenarios.
  • Final reminders: professional scope, referrals, and mental health considerations
    • ATs should recognize limits and refer when necessary (PT, psychology, etc.); treating the whole patient is emphasized via the ICF model.
    • Mental health considerations and patient support are acknowledged; the instructor emphasizes avoiding burnout and seeking support when needed.
  • Practical takeaways for exam and real life
    • Proficiency with palpation sites (carotid, radial, femoral) and normal vitals.
    • Accurate BP measurement using proper cuff size, placement, and auscultation technique; understanding systolic/diastolic interpretation.
    • Airway management basics: OPA/NPA usage, jaw-thrust for spinal injuries, and safe bag-valve-mask technique.
    • Hemorrhage control hierarchy: direct pressure → elevation → gauze layering → hemostatic agents → tourniquet if arterial bleed.
    • ICF model as the framework for patient assessment and rehab planning; PROMs as essential tools for assessing patient-perceived impact on daily life.
    • The value of functional testing and real-world task assessment to guide return-to-activity decisions.
Key Formulas, Numbers, and Concepts (LaTeX)
  • Normal vital ranges (adult):
    • extHRo60extto100extbpmext{HR} o 60 ext{ to } 100 ext{ bpm}
    • extRRo12extto20extbreaths/minext{RR} o 12 ext{ to } 20 ext{ breaths/min}
  • Blood pressure example (typical): 120/80extmmHg120/80 ext{ mmHg}
  • Capillary refill time normal: ext{CRT} < 2 ext{ seconds}
  • Oxygen transport basics
    • One hemoglobin molecule can bind up to 44 oxygen molecules: extHb+4extO<em>2oextHb(O</em>2)4ext{Hb} + 4 ext{O}<em>2 o ext{Hb(O}</em>2)_4 (conceptual)
  • Tourniquet guidance (distance)
    • High and tight: typically at least ext2inchesext{2 inches} above the joint or site to occlude arterial flow
  • Diffusion/ventilation concepts (brief): ventilation moves air in/out; respiration is alveolar gas exchange; oxygenation involves Hb binding; perfusion is tissue oxygen delivery

Note: This set of notes captures the major and many minor points from the transcript, organized into study-ready bullets with explicit mathematical references where appropriate. Use these as a comprehensive study resource to replace the original content and to prepare for exam questions across anatomy, emergency care, rehab planning, and patient-centered assessment.