A 56-year-old patient comes to the walk-in clinic for scant rectal bleeding and intermittent diarrhea and constipation for the past several months. There is a history of polyps and a family history for colorectal cancer. While you are trying to teach about colonoscopy, the patient becomes angry and threatens to leave. What is the priority diagnosis?

A 56-year-old patient comes to the walk-in clinic for scant rectal bleeding and intermittent diarrhea and constipation for the past several months. There is a history of polyps and a family history for colorectal cancer. While you are trying to teach about colonoscopy, the patient becomes angry and threatens to leave. What is the priority diagnosis?

In monitoring patients who are at risk for spinal cord compression related to tumor growth, what is the most likely early manifestation?

Following chemotherapy, a patient is being closely monitored for tumor lysis syndrome. Which laboratory value requires particular attention?

Derek has recently converted his outdoor garage to a gym. He has been exercising frequently in his new gym due to the convenience, even in the extreme heat. He has started taking salt tablets. The physician thinks his current symptoms may be owing to hypernatremia. His physician recognizes these as:

Rob has a history of using ecstasy. He is exhibiting symptoms of hypotension, nausea, diarrhea, personality change, diminished level of consciousness, and decreased deep tendon reflexes. Laboratory results confirm the physician’s suspicion of hyponatremia. Treatment would include: