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The arthritis may be "additive" (more joints become inflamed in addition to the primarily affected one) or "migratory" (new joints become inflamed after the initially inflamed site has already improved). [4] [5] Reactive arthritis is an RF-seronegative, HLA-B27-linked arthritis [6] often precipitated by genitourinary or gastrointestinal infections.
Cirrhosis has many possible causes, and more than one cause may be present. History taking is of importance in trying to determine the most likely cause. [2] Globally, 57% of cirrhosis is attributable to either hepatitis B (30%) or hepatitis C (27%). [46] [47] Alcohol use disorder is another major cause, accounting for about 20–40% of the cases.
The first management step for sleep problems in ME/CFS is improving sleep habits. If sleep problems remain after implementing sleep hygiene routines, cognitive behavioural therapy for insomnia can be offered. Avoiding naps during the day can further improve sleep, [26]: 41 but there may be a trade-off with needed rest during the day.
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A muscle strain occurs when the muscle is stretched too far. When this occurs the muscle fibers are torn. Most commonly, a strain causes microscopic tears within the muscle, but occasionally, in severe injuries, the muscle can rupture from its attachment. A rectus sheath hematoma is an accumulation of blood in the sheath of the rectus abdominis ...
Iliotibial band syndrome is one of the leading causes of lateral knee pain in runners. The iliotibial band is a thick band of fascia composing the tendon of the tensor fasciae latae muscle. It is located on the lateral aspect of the knee, extending from the outside of the pelvis, over the hip and knee, and inserting just below the knee. The ...
Muscle stiffness may also be present; if muscle weakness is not also present, and cramps are more severe, the stiffness may be categorized instead as cramp fasciculation syndrome. [3] Cramp fasciculation is a variant of BFS which presents with muscle pain and exercise intolerance. [2] [4]
The fact that one good is substitutable for another has immediate economic consequences: insofar as one good can be substituted for another, the demands for the two goods will be interrelated by the fact that customers can trade off one good for the other if it becomes advantageous to do so. Cross-price elasticity helps us understand the degree ...