Harold's tachycardia and chronic gastritis are key pieces of evidence in this case that go beyond what shows up in his CBC. One is the cause of his condition and one is a result (sign). Identify which is the sign and which is the cause, and describe their relationship to his condition.

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Explanation:

Harold's tachycardia is the result (sign) caused as a result of his chronic gastritis. His gastritis damages his capability to produce intrinsic factor and then to soak in vitamin B12. The short levels of this very essential vitamin are the cause of his anemia. Harold's anemia condition means that his tissues are weakly oxygenated.

Harold's amplified heart rate (tachycardia) is his body's reaction to the low level of oxygen.

nope, but i have cleaned my brush in my cup of not as potentially harmful but nevertheless, very upsetting for scottish/british folks. especially if you've used the last teabag for it

explanation:

there could be something in that . . i am indeed an old scottish man!

there's a bit of bolshie-ness with it too though. i won't let go of the old ways . . tea and whisky . . whether the young whippersnappers like it or not!