Clinical Management and Interventions
Clinical Management and Interventions tests whether you can convert a working diagnosis into a safe, guideline-concordant plan: order sets, time-based bundles, medication selection, disposition, and care coordination. Many items hinge on sequencing - which intervention must happen first.
Time-critical bundles
- Sepsis: cultures before antibiotics when that does not delay therapy; antibiotics within one hour for septic shock or high likelihood of sepsis; lactate measurement; 30 mL/kg crystalloid for hypotension or lactate ≥4 mmol/L; vasopressors to keep MAP ≥65 mmHg when fluids alone are insufficient.
- ST-elevation myocardial infarction: ECG within 10 minutes, aspirin 162–325 mg chewed, door-to-device time ≤90 minutes for primary PCI, or fibrinolysis within 30 minutes when PCI is unavailable and no contraindication exists.
- Acute ischemic stroke: door-to-CT and door-to-needle ≤60 minutes; thrombolysis within 4.5 hours of last known well; blood pressure below 185/110 mmHg before thrombolytic therapy.
- Diabetic ketoacidosis: isotonic fluids first, insulin infusion only after potassium is confirmed ≥3.3 mEq/L, add dextrose when glucose falls toward 200–250 mg/dL, overlap subcutaneous insulin before stopping the drip.
- Anaphylaxis: intramuscular epinephrine is first-line; antihistamines and corticosteroids are adjuncts and never a substitute.
Disposition reasoning
Ask three questions: what could this become in the next 24 hours, can this patient or caregiver recognize it, and can they return? A validated score supports but does not replace that judgment.
Worked example
A 58-year-old with community-acquired pneumonia has a CURB-65 of 1, but SpO2 is 89% on room air and they live alone without transport. Reasoning: hypoxemia is a hard criterion for admission regardless of the score, and the social assessment independently makes outpatient care unsafe. Admit; do not let a reassuring score override an unmet oxygen or support need.
Traps that cost marks
- Chasing bundle completeness in the wrong order - fluids and antibiotics matter more than a perfectly timed repeat lactate.
- Reflexive 30 mL/kg boluses in heart failure or end-stage renal disease without reassessment for fluid tolerance.
- Discharging on a low-risk score while ignoring trajectory or social factors.
- Prescribing an outpatient antibiotic before cultures in a patient who is clearly septic.