CDS Exam 1 QUESTIONS AND ANSWERS

CDS Exam #1 QUESTIONS AND ANSWERS 100% score (Newest 2025) What are the three phases of testing in which laboratory errors can occur? - Correct Answers ✅1) Preanalytic (before reaching lab) 2) Analytic (at lab being analyzed) 3) Postanalytic (after lab) what are some examples of preanalytic sources of error - Correct Answers ✅- test selection/inappropriate test for the clincal need

• test order misunderstood
• specimen collection/contaminated specimen

- patient not prepared for collection (ex: not fasting)

• incorrect specimen labeling
• delay in transport, improper storage/handling
• patient position during collection
• exercise, diet, recently ingested food
• use of drugs

what are some examples of analytic sources of error? - Correct Answers ✅- incorrect storage conditions

• specimen misidentification
• wrong test performed

- assay interferences (ex: a substance enters or process

falsely alters result) 1 / 3

CDS Exam #1 QUESTIONS AND ANSWERS 100% score (Newest 2025)

- assay failure (ex: assay out of control)

what are examples of postanalytic sources of error? - Correct Answers ✅(most malpractice suits)

• delay in communication of lab results (lab -> provider,

inbox->RN/MA->provider)

• results not communicated to correct person (communicated

to supervising MD but not PA)

• failure to review/act on a lab result
• incorrect result communicated (mistyping, data,

miscommunication)

• misinterpretation of result (provider's fault)

which types of errors related to missed diagnoses result in most malpractice claims? - Correct Answers ✅- preanalytical errors (failure to order an appropriate diagnostic test)

• postanalytical errors (incorrect interpretation of diagnostic

or lab tests) --> providers need more training for lab & diagnostic test ordering & interpretation What kinds of orders lead to increased costs to the healthcare system and the patient? - Correct Answers ✅- defensive orders 2 / 3

CDS Exam #1 QUESTIONS AND ANSWERS 100% score (Newest 2025) -> tests must be both relevant & beneficial when writing their notes, what must providers utilize to ensure insurance companies will approve diagnosis for payment/reimbursement? - Correct Answers ✅- appropriate diagnosis codes (ICD-10) Gold Standard tests - Correct Answers ✅- accuracy of any diagnostic test is assessed to a "gold standard"

• defines patients with disease, & a negative test securely

rules out disease

• any new tests developed must be tested against the gold

standard when testing for tuberculosis (TB), what is the Gold Standard test? - Correct Answers ✅- QuantiFERON-TB Gold Plus -> bc of its HIGH specificity accuracy - Correct Answers ✅- closeness to the true value

• how close you come to the correct result

- can be improved by: training on tools used

• / 3