Maggie is a 28-year-old Caucasian woman who has newly diagnosed rheumatoid arthritis. She complains of painful, stiff hands and feet, feeling tired all the time, and reports an intermittent low-grade fever
She asks the nurse if she is going to be "crippled." How might the nurse explain the pathophysiology of rheumatoid arthritis?
What will be an ideal response
Rheumatoid arthritis ( RA ) is a chronic, systemic, and inflammatory disorder. RA is an autoimmune disease in which the body's immune system attacks its own tissue. RA begins with inflammation of the synovial membrane of the affected joints. Fluid accumulates, causing joint swelling. The nurse should explain that RA is a chronic crippling disease with joint stiffening (ankylosis) resulting in restriction of joint movement and extreme pain.
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The flow rate of blood is the same in all segments of the vascular tree, but the velocity of blood flow is slower in the capillaries than in other segments of the vascular tree
Indicate whether the statement is true or false
Which functional feature best describes the manner in which cardiac muscle contracts?
Automaticity (autorhythmicity) promotes the spontaneous contraction of the cardiac muscle cells. Refractory periods in cardiac contractions are relatively short. Only some motor units contract in cardiac muscle. Nerve fibers must stimulate cardiac muscle cells for them to contract.
An oncologist is reviewing a CT scan of a 74-year-old man with newly diagnosed hepatocellular carcinoma. He locates the affected quadrate lobe of the liver that:
(A) Lies between the IVC and ligamentum venosum (B) Receives blood from the right hepatic artery (C) Drains bile into the left hepatic duct (D) Is a medial superior segment (E) Is functionally a part of the right lobe
Which body region is controlled by the largest area of the motor cortex?
A) Trunk B) Fingers C) Shoulder D) Toes E) Neck