Sorted By Test Name - Mayo Medical Laboratories

FFLT3
57493
FFLUC
91996
FLUCO
82522
recurrence of ventricular tachycardia. Flecainide is eliminated from blood by hepatic metabolism as well
as renal clearance; significant changes in either organ system will cause impaired clearance. During
preclinical trials, patients with congestive heart failure were observed to have radically altered clearance
properties. Cardiac toxicity attributed to flecainide is related to its cardiac conduction slowing properties.
Excessive prolongation of PR, QRS, and QT intervals occurs with increased amplitude of the T wave.
Reductions in myocardial rate, contractility, as well as conduction disturbances, are also associated with
excessive dose and plasma concentration of flecainide. Death can occur from hypotension, respiratory
failure, and asystole. Flecainide is contraindicated in patients with sick sinus syndrome. It causes sinus
bradycardia, sinus pause, or sinus arrest.
Useful For: Optimizing dosage Assessing toxicity Monitoring compliance
Interpretation: Flecainide is most effective in premature ventricular contractions suppression at
plasma concentrations in the range of 0.2 to 1.0 mcg/mL. Plasma concentrations >1.0 mcg/mL are
associated with a high rate of cardiac adverse experiences such as conduction defects or bradycardia.
Therapeutic concentration: 0.2 to 1.0 mcg/mL.
Reference Values:
0.2-1.0 mcg/mL
Clinical References: Josephson ME, Buxton AE, Marchlinski FE: The tachyarrhythmias:
tachycardias. In Harrison's Principles of Internal Medicine. 12th edition. Edited by JD Wilson, E
Braunwald, KJ Isselbacher, et al: New York, McGraw-Hill Book Company, 1991, p 915
FLT3 Mutation Testing
Reference Values:
Negative
Test Performed by: Laboratory for Personalized Molecular Medicine
6330 Nancy Ridge Drive, Suite 106
San Diego, CA 92121
Fluconazole (Diflucan)
Reference Values:
Test Performed by: U.T. Health Science Ctr San Antonio
7703 Floyd Curl Drive
Department of Pathology
Fungal Lab
San Antonio, TX 78229-3900
Fluconazole, Serum
Clinical Information: Fluconazole (Diflucan) is a synthetic triazole antifungal agent for either
intravenous or oral administration. It is indicated for treatment of fungal infections caused by Candida
albicans and meningitis caused by Cryptococcus neoformans. Fluconazole is