You examine a 75-year old man who presents with severe heada…

You examine a 75-year old man who presents with severe headache and generalized pruritis. Spleen palpable at 10cm mark just below the left costal margin. Liver palpable 3 cm below right costal margin. The rest of the exam was within normal limits. These values are most consistent with: Hgb=17.3/dL (normal 14 to 16g/dL) Hct=54% (normal 42% to 48%) RBC= 7.7 million mm (normal 4.7 to 6.1 million mm) MCV= 97 fl (normal 81 to 96 fl) MCHC=33.2 g/dL (normal 31 to 37 g/dl) WBC=18.3 (Normal 4,500-11,000) PLT=484 (normal 150-450)

The treatment called Botox works by blocking nerve signals a…

The treatment called Botox works by blocking nerve signals and is typically used to target the muscles of the face to reduce wrinkling. However, some patients with excessive sweating (hyperhidrosis) have Botox injected into problem areas to reduce the amount of sweating. Why would this work?