A 62-year-old man has past medical history of type 2 diabete…

A 62-year-old man has past medical history of type 2 diabetes, hypertension and a myocardial infarction 3 years ago. He has a normal renal function, healthy BMI and does not smoke or drink. Which of the following anti-diabetic drugs would be the least appropriate choice for this man?

A patient in the clinic shows signs of meningitis (infection…

A patient in the clinic shows signs of meningitis (infection of the meninges). A spinal tap procedure is needed to obtain a sample of cerebrospinal fluid to confirm or reject the diagnosis of meningitis. Which one of the following structures will be penetrated by the spinal needle during the spinal tap procedure?