Approximately one billion years ago, the Moon orbited the Earth much closer than it does today.  The radius of the orbit was only 24 400 km.   The orbital period was only 23 400 s.  Today, the average radius is 385 000 km; and the present period is 2.36 × 106 s.  Assuming that the orbit of the Moon is circular, calculate the ratio of the speed of the Moon in its ancient orbit to the speed that it has today.

Your next patient is a 65-year-old male who presents with a week long history of minimal nausea, upper epigastric discomfort and heartburn, bloating and belching for one hour following large meals. What are the two major differential diagnoses in this situation?

You are seeing a patient who was in a motor vehicle accident earlier today and is having severe left upper quadrant pain. Which of the following is MOST likely to be occurring with this patient?

Which of the following tests does NOT evaluate the function of the median nerve?

A 58-year-old patient presents with chronic hand pain, stiffness lasting longer than one hour in the morning, and progressive difficulty performing fine motor tasks. On physical exam, there is ulnar deviation at the metacarpophalangeal (MCP) joints and several fingers exhibit boutonnière deformities. Which of the following conditions is most consistent with these findings?

Which of the following statements regarding older patients is true?

The elasticity of pelvic ligaments and softening of cartilage in pregnant patients are caused by:

The meninge composed of a delicate web of collagen and elastic fibers is the

Your patient is a 48-year-old woman.  She describes severe cramping pain in the abdomen and right flank. Her past medical history includes a history of bladder calculi. You diagnose her with renal calculi at this time. Which of the following symptoms would you LEAST expect with her diagnosis? 

A 62-year-old patient with a past medical history significant for hypertension, chronic obstructive pulmonary disease (COPD), and long-term tobacco use is accompanied by his partner to a hospital follow-up clinic appointment. His partner is very concerned about his recent hospitalization for a COPD exacerbation and asks what can be done to improve his health. Which of the following holds the greatest long-term health benefit for this patient?