24. Pulmonary emboli Flashcards Preview

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Flashcards in 24. Pulmonary emboli Deck (12):

Most of polumonary emboli arise from ... proportion

proximal deep veins of lower extremity


imaging study for pulmonary emboli
look for

CT pulmonary angiography
look for filling defects


Types / causes of pulmonary defect

mnemonic: FAT BAT
1. Fat 2. Air 3.Thrombus 4.Bacteria 5.Amnionic fluid 6. Tumor


pulmonary emboli symptoms

1. sudden onset of dyspnea
2. chest pain
3. tachypnea


• A patient has sudden chest pain and difficulty breathing. If he is diagnosed with a pulmonary embolus, what signs will you discover?

Sudden-onset dyspnea, chest pain, tachypnea, tachycardia


• Name the types of emboli to the lungs.

An embolus moves like a FAT BAT (Fat, Air, Thrombus, Bacteria, Amniotic fluid, Tumor)


• A patient presents with sudden-onset dyspnea 1 hour after a femur fracture. He is found to have a V/Q mismatch. What is your diagnosis?

Fat embolus


• A patient presents with sudden-onset dyspnea, altered mental status, and a petechial rash after liposuction. What is the likely cause?

Fat emboli (the classic presenting triad is hypoxemia, neurologic abnormalities, and petechial rash)


• A postpartum woman suddenly throws an amniotic fluid embolus. This will likely lead to what dangerous hematologic condition?

Disseminated intravascular coagulation


• A diver who ascended too quickly complains of joint pain and shortness of breath. How would you treat this patient?

Treat with hyperbaric O2 (the patient has an air embolus, as nitrogen bubbles can precipitate in divers who ascend too quickly)


• A patient presents with sudden chest pain, tachypnea, and dyspnea. What is the imaging test of choice? What is being looked for?

Computed tomography pulmonary angiography; look for filling defects


• You are informed that your bed-bound patient on cardiac monitoring suddenly developed sinus tachycardia. Do you consider a chest CT scan?

Yes, as this may be a sign that the patient just threw a pulmonary embolus (being bed bound, which promotes stasis, makes this more likely)