Atrial fibrillation laboratory findings: Difference between revisions
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== | ==Overview== | ||
Many cases of [[AF]] have no definite cause, it may be the result of various other problems (blood tests of [[thyroid function tests|thyroid function]] are required, especially for a first episode of [[AF]], when the ventricular rate is difficult to control, or when [[AF]] recurs unexpectedly after [[cardioversion]]). | Many cases of [[AF]] have no definite cause, it may be the result of various other problems (blood tests of [[thyroid function tests|thyroid function]] are required, especially for a first episode of [[AF]], when the ventricular rate is difficult to control, or when [[AF]] recurs unexpectedly after [[cardioversion]]). | ||
[[Renal function]] and [[electrolyte]]s are routinely determined | ==Laboratory Findings== | ||
*[[Renal function]] and [[electrolyte]]s are routinely determined | |||
In acute-onset [[AF]] associated with [[chest pain]], [[troponin|cardiac troponins]] or other markers of damage to the [[myocardium|heart muscle]] may be ordered. [[Coagulation]] studies ([[International normalized ratio|INR]]/[[aPTT]]) are usually performed, as [[anticoagulant]] medication may be commenced. | *Thyroid function tests : [[Thyroid-stimulating hormone]] ([[TSH]]) is commonly suppressed in [[hyperthyroidism]] and of relevance if [[amiodarone]] is administered for treatment | ||
*[[Complete blood count]]. | |||
*Cardiac markers : In acute-onset [[AF]] associated with [[chest pain]], [[troponin|cardiac troponins]] or other markers of damage to the [[myocardium|heart muscle]] may be ordered. | |||
*[[Coagulation]] studies ([[International normalized ratio|INR]]/[[aPTT]]) are usually performed, as [[anticoagulant]] medication may be commenced. | |||
==References== | ==References== | ||
Revision as of 17:31, 3 September 2013
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Resident Survival Guide |
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Sinus rhythm  |
Atrial fibrillation  |
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Atrial Fibrillation Microchapters | |
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Special Groups | |
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Diagnosis | |
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Treatment | |
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Cardioversion | |
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Anticoagulation | |
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Surgery | |
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Case Studies | |
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Atrial fibrillation laboratory findings On the Web | |
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Directions to Hospitals Treating Atrial fibrillation laboratory findings | |
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Risk calculators and risk factors for Atrial fibrillation laboratory findings | |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Many cases of AF have no definite cause, it may be the result of various other problems (blood tests of thyroid function are required, especially for a first episode of AF, when the ventricular rate is difficult to control, or when AF recurs unexpectedly after cardioversion).
Laboratory Findings
- Renal function and electrolytes are routinely determined
- Thyroid function tests : Thyroid-stimulating hormone (TSH) is commonly suppressed in hyperthyroidism and of relevance if amiodarone is administered for treatment
- Complete blood count.
- Cardiac markers : In acute-onset AF associated with chest pain, cardiac troponins or other markers of damage to the heart muscle may be ordered.
- Coagulation studies (INR/aPTT) are usually performed, as anticoagulant medication may be commenced.