The tubing that brings the lyse reagent to the hemoglobin cuvette on an automated cell counter is pinched and not delivering any reagent. All hemoglobin values are greater than 20 g/dL. This represents what type of error?
a. Random
b. Imprecision
c. Constant systematic
d. Proportional systematic
ANS: C
A constant systematic error is one in which the magnitude of the error remains the same throughout the range of the test measurement. The error is proportional if the magnitude varies relative to the result. This is not a random error, which happens only infrequently and is not predictable. Precision requires multiple measurements of the same specimen and evaluates the ability to consistently reproduce the result.
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An audit/edit report from a clearinghouse will show all of the following EXCEPT:
A) claims that need corrections. B) claims that are missing information. C) claims forwarded to the insurance carrier. D) paid claims.
Which convention is used in ICD-9 and ICD-10 to set off nonessential or supplementary terms that do not affect the code?
A. ( ) B. [ ] C. { } D. ; ; E. : :