Sounds as he is presenting with HIV/AIDs, and probably should get seen in the ER.
Answer:
The correct answer is - tarry black.
Explanation:
Black stools is a serious symptom that suggests that it is because of huge amount of the bleeding into the GI or gastrointestinal tract and especialy upper portion of it that include stomach, esophagus, and duodoneum.
As the RBCs are digested by the digestive enzyme in the intestine which makes the stool color to the tarry black which can be also be occur in the tarry black due to medications.
Thus, the correct answer is - tarry black.
Answer:
Mounting evidence indicates that in healthy older adults, <u>Mylenin breakdown</u> predict(s) decrements in reaction time and other cognitive abilities.
Explanation:
According to one view, aging is accompanied by withering of the myelin coating on neural fibers within the cerebral cortex, leading to deteriorating neural connections, especially in the prefrontal cortex and the corpus callosum. Mounting evidence indicates that in healthy older adults, extent of myelin breakdown—appearing as small, high-intensity bright spots within fMRIs—predicts decrements in reaction time and other cognitive abilities.
