Which of the following is the most likely cause?

A 65-year-old man complains of progressive breathlessness, swelling of his ankles. painful joints and earache. An X-ray of his chest shows multiple nodules scattered throughout both lung fields. Urinalysis reveals proteinuria and microscopic haematuria.

What is the most probable diagnosis?

A 70-year-old woman presented complaining of pain in her legs. A dual-energy X-ray absorptiometry (DEXA) scan revealed osteoporosis. Her doctor prescribed 400 IU of vitamin D along with calcium supplements.

Which is the most active metabolite of vitam in D involved in calcium homeostasis?

An obese 50-year-old man presents in the middle of the night to the Emergency Department with swelling of his first metatarsophalangeal joint and left knee. On examination the joints are swollen, red. hot and tender.

Which examination would definitively confirm the suspected diagnosis?

A 39-year-old woman has been recently been diagnosed wit h systemic lupus erythematosus. She wants to know more about the possible symptoms that she may experience in the

future.

What is the most common gastrointestinal complication seen in this condition?