A 73-Year-Old Man With Right-Sided Chest Pain and Dyspnea.

A 73-year-old man presented with a 2-week history of intermittent right-sided chest pain, cough, and progressive dyspnea on exertion. He reported subjective weight loss and anorexia with early satiety over the preceding months. He denied any fevers, night sweats, or sick contacts.

The cost of repetitive laboratory testing for chronic disease.

Interval laboratory investigations are necessary for monitoring chronic diseases. However, testing too frequently may not be beneficial clinically and can be considered low-value care. We examined the frequency of glycosylated haemoglobin, lipids, iron panels (serum iron, ferritin, transferrin, iron binding) thyroid function (free T4 and thyroid stimulating hormone) and 25-OH vitamin D tests in a 1290-bed tertiary hospital in Singapore.