You are evaluating a 65 year old plumber with complaints of right knee pain. His chief complaint is deep achy pain in the knee. He cannot recall a specific mechanism of injury and x-rays reveal decreased joint space in the medial compartment of the tibiofemoral joint and osteophyte formation. Which of the following is the most likely diagnosis?  

Treatment of cellulitis could include: 

What substance, composed of protein and fat, allows for fast nerve impulse conduction throughout the nervous system? 

Which of the following is the primary cause of obesity?

What is the average lifecycle duration of a keratinocyte? 

What is the appropriate next course of action to take for your patient who is experiencing acute onset of angina? Note: You have just administered his second dose of Nitroglycerin and his complaints of pain persist. 

What stage of burn is characterized by involvement of the epidermal and dermal layers, with redness and blister formation? 

Which of the following conditions can lead to development of congestive heart failure?

Which of the following is NOT a cause of angina pectoris?

Which of the following diseases is characterized by the inability of chloride to penetrate through epithelial cells of the digestive and pulmonary mucosa, leading to thickened mucus?