An FBC not only tests for disorders and abnormalities of the blood but, as blood travels throughout the whole body, it can give an indication of disease present in other organs. An FBC, as the name suggests, is used to obtain a count of the blood cells in the sample of blood taken.
Flecainide is a sodium channel blocker used mainly in the treatment of supraventricular arrhythmias. Central nervous system side effects such as dizziness, visual disturbances, headache and nausea are commonly associated with flecainide, but severe central nervous system toxicity is rare.
Nifedipine is a dihydropyridine calcium channel blocker that is widely used for the treatment of cardiovascular disorders in nonpregnant individuals. Over the last 15 years its favourable pharmacologic characteristics have resulted in its efficacy and safety being assessed in pregnancy.