side by side comparison
DVT vs Pulmonary Embolism: Clot in the Leg vs Clot in the Lung
A client with calf swelling yesterday now has sudden dyspnea and chest pain today — that DVT just migrated to the lungs. Mixing up leg-clot findings with lung-clot findings on the NCLEX means you miss the respiratory emergency and choose the wrong priority action.
Comparison
Side-by-side2 compared
Dimension
DVT
Pulmonary Embolism
Clot location & onset
- Deep leg veins (femoral, popliteal)
- Gradual onset over hours to days
- Clot lodges in pulmonary arteries
- Sudden onset — seconds to minutes
Key findings
- ★Unilateral leg edema, warmth, erythema
- Palpable cord; dull calf pain worse standing
- ★Sudden dyspnea + pleuritic chest pain
- Tachypnea, tachycardia, anxiety/doom; hemoptysis
Diagnostics & vitals
- Duplex compression venous ultrasound
- Lungs clear, SpO₂ normal, stable VS
- CT pulmonary angiography (CTPA); ↑ D-dimer
- ★Hypoxemia SpO₂ <94%; tachypnea >20
Nursing priorities
- Elevate extremity; initial bed rest
- Never massage the affected leg
- High-flow O₂; support oxygenation
- Prepare for possible code
Treatment
- Anticoagulate: heparin/LMWH → warfarin/DOAC
- Emergent heparin bolus + drip
- Massive PE: thrombolytics (tPA) or embolectomy
Prevention & teaching
- Early ambulation post-op; SCDs, TED hose
- Prophylactic enoxaparin; stay hydrated
- Prevent DVT — same measures
- IVC filter if anticoagulation contraindicated
Red flags — escalate
- ★New dyspnea/chest pain → clot embolized
- Hypotension + right heart strain → massive PE
Complications
- Embolization to lungs (PE)
- Post-thrombotic syndrome
- Cardiac arrest from massive PE
- Right heart failure
Clot location & onset
DVT
- Deep leg veins (femoral, popliteal)
- Gradual onset over hours to days
Pulmonary Embolism
- Clot lodges in pulmonary arteries
- Sudden onset — seconds to minutes
Key findings
DVT
- ★Unilateral leg edema, warmth, erythema
- Palpable cord; dull calf pain worse standing
Pulmonary Embolism
- ★Sudden dyspnea + pleuritic chest pain
- Tachypnea, tachycardia, anxiety/doom; hemoptysis
Diagnostics & vitals
DVT
- Duplex compression venous ultrasound
- Lungs clear, SpO₂ normal, stable VS
Pulmonary Embolism
- CT pulmonary angiography (CTPA); ↑ D-dimer
- ★Hypoxemia SpO₂ <94%; tachypnea >20
Nursing priorities
DVT
- Elevate extremity; initial bed rest
- Never massage the affected leg
Pulmonary Embolism
- High-flow O₂; support oxygenation
- Prepare for possible code
Treatment
DVT
- Anticoagulate: heparin/LMWH → warfarin/DOAC
Pulmonary Embolism
- Emergent heparin bolus + drip
- Massive PE: thrombolytics (tPA) or embolectomy
Prevention & teaching
DVT
- Early ambulation post-op; SCDs, TED hose
- Prophylactic enoxaparin; stay hydrated
Pulmonary Embolism
- Prevent DVT — same measures
- IVC filter if anticoagulation contraindicated
Red flags — escalate
DVT
- ★New dyspnea/chest pain → clot embolized
Pulmonary Embolism
- Hypotension + right heart strain → massive PE
Complications
DVT
- Embolization to lungs (PE)
- Post-thrombotic syndrome
Pulmonary Embolism
- Cardiac arrest from massive PE
- Right heart failure
★ marks the fact that sets a column apart.
Clinical Pearl
Swollen hot leg = DVT stays put. Sudden dyspnea + chest pain = the clot moved to the lungs.
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