Laboratory Diagnosis of Endocrine Diseases — MCQs

TRH stimulation testing is useful in diagnosis of disorders of the following hormones?

In hypoparathyroidism:

A 30-year-old male presents with erectile dysfunction, low testosterone, and elevated prolactin levels. What is the most likely diagnosis?

A patient presents with symptoms of hyperthyroidism. Thyroid function tests would probably reveal:

Adrenal reserve is best tested by means of infusion with

A 45-year-old man with a recent history of bizarre behavior is seen by a psychiatrist. On physical examination, the patient appears moderately obese with mild hypertension, facial acne, and fat accumulation in the supraclavicular fossae. Laboratory studies demonstrate neutrophilic leukocytosis, decreased lymphocytes, and absence of eosinophils, along with mild hypokalemia and mild metabolic alkalosis. The fasting serum glucose is within the reference range, but the OGTT shows glucose concentrations > 200 mg/dL. Laboratory studies also show a free urinary cortisol of 156 mg/24 hours. Which of the following questions would be of most help in establishing a diagnosis?

The following is a histopathological image of thyroid pathology. What is the diagnosis?

False regarding Alzheimer's disease (AD) is:

Which of the following is the most sensitive and specific initial laboratory test to diagnose iron deficiency?

Classical markers for Hodgkin's disease are