A 42-year-old woman comes into the clinic complaining of int

A 42-year-old woman comes into the clinic complaining of intermittent easy bruising around her eyes and chest, especially after surfing and boogie boarding with her son. She recently suffered a syncopal episode and a work up, which included a stress echocardiogram, revealed a hypertrophic heart with a speckled pattern. When she was discharged from the hospital, she was given a diagnosis of congestive heart failure with a restrictive pattern. An endomyocardial biopsy is scheduled for next week. She denies any significant family history and has been healthy with the exception of easy bruising, occasionally with vomiting. Routine urinalysis from her recent admission revealed proteinuria. Upon further questioning, she has suffered carpal tunnel syndrome bilaterally and occasional numbness and tingling of her toes. The most useful study to diagnose this patient's condition is

A. complete blood count


B. liver function test


C. morning cortisol level


D. protein immunoelectrophoresis


E. thyroid function tests

diagnosis is amyloidosis n ans is d.