Equalis 570 Preanalys, blodprovtagning – Review
Questions with Detailed Answers
,1. During a reagent lot change, which action best supports an effective handover involving
pre-analytical stability, transport, preparation and sample-identity controls to support reliable?
A. Communicate current status, unresolved risks, relevant evidence, controls in place, and the next required action with
clear ownership.
B. Provide only the final status and allow the next person to review the history independently.
C. Transfer all documents without identifying unresolved issues or priorities.
D. Delay handover until every issue is fully resolved, even when responsibility must change.
Correct Answer: A
Explanation: A good handover for pre-analytical stability, transport, preparation and sample-identity controls to support reliable
makes status, evidence, unresolved risk, controls, next actions, and ownership explicit.
2. During external-quality sample processing, what should be checked before relying on
information used for method principle, calibration model, analytical range and interference risks?
A. Use the information if it looks similar to what is normally expected.
B. Confirm that the source is applicable, current enough for the decision, complete, and traceable to the item or condition
being evaluated.
C. Assume applicability when the source was created by an experienced colleague.
D. Use the oldest available record because it has been reviewed more times.
Correct Answer: B
Explanation: Information supporting method principle, calibration model, analytical range and interference risks must be
applicable, sufficiently current, complete, and traceable before it can support a defensible decision.
3. Before repeating a measurement, what is the best response when an acceptance criterion for
internal controls, run acceptance and recognition of systematic or random error is not met?
A. Stop or contain the affected activity as appropriate, determine the significance, investigate, and obtain authorized
disposition before release or continuation.
B. Accept the result if it is close to the limit and no complaint has been received.
C. Repeat the measurement until a passing value is obtained and report only that result.
D. Continue the next step and plan to correct the record later.
Correct Answer: A
Explanation: A failed criterion in internal controls, run acceptance and recognition of systematic or random error requires
controlled disposition based on significance and evidence, not selective repetition or informal acceptance.
Equalis 570 Preanalys, blodprovtagning - Review Questions with Detailed Answers
Page 2
,4. While reviewing a reference interval, which observation most strongly indicates that
external-quality sample processing without inappropriate collaboration or special treatment
needs immediate review?
A. A change that crosses an acceptance limit or could materially affect safety, quality, validity, or downstream decisions.
B. A minor cosmetic difference that has no effect on function or acceptance criteria.
C. An unchanged value that remains well within its expected range.
D. A routine administrative delay with no effect on the controlled process.
Correct Answer: A
Explanation: Immediate review is warranted when a change in external-quality sample processing without inappropriate
collaboration or special treatment can affect an acceptance limit or a material outcome.
5. While trending quality-control data, what is the best way to verify that corrective action for
peer-group, target-value, bias, z-score or allowable-error interpretation with decisions was
effective?
A. Repeat or monitor the relevant check under representative conditions and confirm that the original failure does not
recur.
B. Confirm that the corrective-action form was signed.
C. Assume effectiveness because the responsible person completed the assigned action.
D. Wait for a future complaint or incident before reviewing the change.
Correct Answer: A
Explanation: Corrective action for peer-group, target-value, bias, z-score or allowable-error interpretation with decisions is
verified by objective performance evidence, not merely by completion of paperwork.
6. After a pre-analytical deviation, a result related to investigation of unacceptable performance
using reagent, instrument and operator evidence for safe appears plausible but unusual. What is
the best next step?
A. Accept it because a plausible result does not require verification.
B. Check the result against relevant controls, context, source data, and known limitations before accepting or rejecting it.
C. Reject it because unusual results are usually errors.
D. Replace it with the nearest expected value to maintain consistency.
Correct Answer: B
Explanation: An unusual result in investigation of unacceptable performance using reagent, instrument and operator evidence
for safe should be evaluated against controls, context, source data, and limitations rather than accepted or
rejected by appearance.
Equalis 570 Preanalys, blodprovtagning - Review Questions with Detailed Answers
Page 3
, 7. Before releasing a patient result, which response best protects quality when workload pressure
affects corrective action, verification with fresh controls and prevention of recurrence?
A. Reduce verification steps evenly across all tasks to preserve throughput.
B. Complete documentation later from memory after the workload decreases.
C. Maintain required controls and acceptance criteria, reprioritize work, and escalate resource constraints that threaten
reliable performance.
D. Use informal acceptance criteria until normal staffing returns.
Correct Answer: C
Explanation: Workload pressure does not justify weakening controls for corrective action, verification with fresh controls and
prevention of recurrence; reprioritization and escalation are safer than silent process degradation.
8. After instrument maintenance, which sequence best supports reliable work on documented
review connecting proficiency findings to routine patient-result risk?
A. Perform the action; document it; decide afterward what criteria should have applied; then verify.
B. Confirm requirements and conditions; perform the controlled action; verify the outcome; document and communicate as
needed.
C. Document the planned result; perform the action; skip verification; communicate only if a problem appears.
D. Verify the final outcome first; perform the action; then establish the original condition from memory.
Correct Answer: B
Explanation: The reliable sequence for documented review connecting proficiency findings to routine patient-result risk is
requirement and condition verification, controlled execution, outcome verification, then documentation.
9. After an unexpected analytical shift, a proposed shortcut affects measurand or analyte
definition, specimen matrix and clinical purpose stated in the title. Which consideration should
carry the greatest weight?
A. Whether the shortcut is faster than the documented method.
B. Whether the shortcut preserves the required controls, evidence, acceptance criteria, and safety or quality outcome.
C. Whether another team has used a similar shortcut informally.
D. Whether the shortcut reduces the amount of documentation required.
Correct Answer: B
Explanation: A shortcut is acceptable only if it preserves the controls and evidence required for measurand or analyte
definition, specimen matrix and clinical purpose stated in the title; convenience alone is not a sufficient basis.
Equalis 570 Preanalys, blodprovtagning - Review Questions with Detailed Answers
Page 4
Questions with Detailed Answers
,1. During a reagent lot change, which action best supports an effective handover involving
pre-analytical stability, transport, preparation and sample-identity controls to support reliable?
A. Communicate current status, unresolved risks, relevant evidence, controls in place, and the next required action with
clear ownership.
B. Provide only the final status and allow the next person to review the history independently.
C. Transfer all documents without identifying unresolved issues or priorities.
D. Delay handover until every issue is fully resolved, even when responsibility must change.
Correct Answer: A
Explanation: A good handover for pre-analytical stability, transport, preparation and sample-identity controls to support reliable
makes status, evidence, unresolved risk, controls, next actions, and ownership explicit.
2. During external-quality sample processing, what should be checked before relying on
information used for method principle, calibration model, analytical range and interference risks?
A. Use the information if it looks similar to what is normally expected.
B. Confirm that the source is applicable, current enough for the decision, complete, and traceable to the item or condition
being evaluated.
C. Assume applicability when the source was created by an experienced colleague.
D. Use the oldest available record because it has been reviewed more times.
Correct Answer: B
Explanation: Information supporting method principle, calibration model, analytical range and interference risks must be
applicable, sufficiently current, complete, and traceable before it can support a defensible decision.
3. Before repeating a measurement, what is the best response when an acceptance criterion for
internal controls, run acceptance and recognition of systematic or random error is not met?
A. Stop or contain the affected activity as appropriate, determine the significance, investigate, and obtain authorized
disposition before release or continuation.
B. Accept the result if it is close to the limit and no complaint has been received.
C. Repeat the measurement until a passing value is obtained and report only that result.
D. Continue the next step and plan to correct the record later.
Correct Answer: A
Explanation: A failed criterion in internal controls, run acceptance and recognition of systematic or random error requires
controlled disposition based on significance and evidence, not selective repetition or informal acceptance.
Equalis 570 Preanalys, blodprovtagning - Review Questions with Detailed Answers
Page 2
,4. While reviewing a reference interval, which observation most strongly indicates that
external-quality sample processing without inappropriate collaboration or special treatment
needs immediate review?
A. A change that crosses an acceptance limit or could materially affect safety, quality, validity, or downstream decisions.
B. A minor cosmetic difference that has no effect on function or acceptance criteria.
C. An unchanged value that remains well within its expected range.
D. A routine administrative delay with no effect on the controlled process.
Correct Answer: A
Explanation: Immediate review is warranted when a change in external-quality sample processing without inappropriate
collaboration or special treatment can affect an acceptance limit or a material outcome.
5. While trending quality-control data, what is the best way to verify that corrective action for
peer-group, target-value, bias, z-score or allowable-error interpretation with decisions was
effective?
A. Repeat or monitor the relevant check under representative conditions and confirm that the original failure does not
recur.
B. Confirm that the corrective-action form was signed.
C. Assume effectiveness because the responsible person completed the assigned action.
D. Wait for a future complaint or incident before reviewing the change.
Correct Answer: A
Explanation: Corrective action for peer-group, target-value, bias, z-score or allowable-error interpretation with decisions is
verified by objective performance evidence, not merely by completion of paperwork.
6. After a pre-analytical deviation, a result related to investigation of unacceptable performance
using reagent, instrument and operator evidence for safe appears plausible but unusual. What is
the best next step?
A. Accept it because a plausible result does not require verification.
B. Check the result against relevant controls, context, source data, and known limitations before accepting or rejecting it.
C. Reject it because unusual results are usually errors.
D. Replace it with the nearest expected value to maintain consistency.
Correct Answer: B
Explanation: An unusual result in investigation of unacceptable performance using reagent, instrument and operator evidence
for safe should be evaluated against controls, context, source data, and limitations rather than accepted or
rejected by appearance.
Equalis 570 Preanalys, blodprovtagning - Review Questions with Detailed Answers
Page 3
, 7. Before releasing a patient result, which response best protects quality when workload pressure
affects corrective action, verification with fresh controls and prevention of recurrence?
A. Reduce verification steps evenly across all tasks to preserve throughput.
B. Complete documentation later from memory after the workload decreases.
C. Maintain required controls and acceptance criteria, reprioritize work, and escalate resource constraints that threaten
reliable performance.
D. Use informal acceptance criteria until normal staffing returns.
Correct Answer: C
Explanation: Workload pressure does not justify weakening controls for corrective action, verification with fresh controls and
prevention of recurrence; reprioritization and escalation are safer than silent process degradation.
8. After instrument maintenance, which sequence best supports reliable work on documented
review connecting proficiency findings to routine patient-result risk?
A. Perform the action; document it; decide afterward what criteria should have applied; then verify.
B. Confirm requirements and conditions; perform the controlled action; verify the outcome; document and communicate as
needed.
C. Document the planned result; perform the action; skip verification; communicate only if a problem appears.
D. Verify the final outcome first; perform the action; then establish the original condition from memory.
Correct Answer: B
Explanation: The reliable sequence for documented review connecting proficiency findings to routine patient-result risk is
requirement and condition verification, controlled execution, outcome verification, then documentation.
9. After an unexpected analytical shift, a proposed shortcut affects measurand or analyte
definition, specimen matrix and clinical purpose stated in the title. Which consideration should
carry the greatest weight?
A. Whether the shortcut is faster than the documented method.
B. Whether the shortcut preserves the required controls, evidence, acceptance criteria, and safety or quality outcome.
C. Whether another team has used a similar shortcut informally.
D. Whether the shortcut reduces the amount of documentation required.
Correct Answer: B
Explanation: A shortcut is acceptable only if it preserves the controls and evidence required for measurand or analyte
definition, specimen matrix and clinical purpose stated in the title; convenience alone is not a sufficient basis.
Equalis 570 Preanalys, blodprovtagning - Review Questions with Detailed Answers
Page 4
