Workup for 15-Year-Old with Epistaxis in the Emergency Department
For a 15-year-old presenting with epistaxis to the ED, laboratory testing is NOT routinely indicated unless specific risk factors are present—focus on a targeted history, anterior rhinoscopy, and immediate management rather than reflexive lab draws. 1, 2
Initial Assessment Priority
The workup should be driven by bleeding severity and specific risk factors, not age alone. Most pediatric epistaxis is anterior, self-limited, and requires minimal intervention 2, 3.
Essential History Elements
Document these specific risk factors that mandate different management 1:
- Personal or family history of bleeding disorders
- Anticoagulant or antiplatelet medication use (including aspirin)
- Intranasal drug use
- Prior nasal/sinus surgery
- Nasal trauma or foreign body
- Chronic kidney or liver disease
- Duration and frequency of current bleeding episode
- Bilateral vs. unilateral bleeding
- Whether bleeding is currently active
Physical Examination Approach
Perform anterior rhinoscopy after removing any blood clot to identify the bleeding source 1, 4. This is the primary diagnostic maneuver—not laboratory testing.
- Clear clots first
- Visualize anterior septum (most common site in adolescents)
- Assess for active bleeding vs. resolved
Laboratory Testing: When to Order
Laboratory tests should be SELECTIVE, not routine 2, 3:
Indications for Lab Work:
- Bilateral bleeding 2
- Active bleeding at presentation 2
- Nontraumatic epistaxis with no obvious cause 2
- History of chronic disease 2
- Current medication use affecting coagulation 2
- Recurrent epistaxis despite prior treatment 2
- Suspicion of bleeding disorder 1
Labs NOT Needed:
- Simple unilateral, traumatic epistaxis that has stopped 2, 3
- First episode with clear local cause (digital trauma, dry air) 2
- Brief bleeding (<5 minutes) that resolved spontaneously 2
The 2021 pediatric study found that routine coagulation tests are not mandatory unless the above risk factors exist 2, 3.
When to Escalate Workup
Consider nasal endoscopy (or refer to ENT) if 1, 4:
- Bleeding precludes identification of source despite compression
- Recurrent epistaxis despite prior cautery/packing
- Concern for unrecognized pathology
- Posterior bleeding suspected
Screen for hereditary hemorrhagic telangiectasia (HHT) if 1:
- History of recurrent bilateral nosebleeds
- Family history of recurrent nosebleeds
- Look for nasal or oral mucosal telangiectasias
Common Pitfalls
- Ordering reflexive CBC/coagulation studies on every epistaxis patient—this is unnecessary and delays treatment 2, 3
- Failing to document medication history—antiplatelet/anticoagulant use fundamentally changes management 1
- Not asking about recurrence patterns—bilateral recurrent bleeds suggest HHT 1
- Skipping anterior rhinoscopy—this is your primary diagnostic tool, not labs 1
Management Takes Priority Over Workup
In the absence of life-threatening bleeding, initiate first-line treatments BEFORE transfusion, reversal of anticoagulation, or medication withdrawal 1, 4. The workup should not delay:
- Nasal compression (5+ minutes)
- Topical vasoconstrictors (if >6 years old)
- Identification and cauterization of bleeding site if visible
For this 15-year-old, 96% of pediatric epistaxis stops spontaneously without additional treatment 2. Your workup intensity should match the clinical severity, not be protocol-driven.