Atrial flutter laboratory findings

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Raviteja Guddeti, M.B.B.S. [2]

Common laboratory tests obtained in a patient with atrial flutter include complete blood count with differential, thyroid function tests, ABG, urinalysis, liver function tests and INR levels.

Laboratory studies in patients with atrial flutter include:

• Complete blood count is routinely done to look for anemia
• Differential count to look for elevated white cell count in infectious causes like pericarditis
• Thyroid function tests are done to look for hyperthyroidism, which is a potential cause of atrial flutter
• Blood gas analysis is done to look for hypoxia and carbonmonoxide poisoning
• Erythrocyte sedimentation rate
• Urinalysis
• Liver function tests
• Pre-warfarin coagulation screen (INR/aPTT)

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