Required section · Section 5 of 6
Decide: what does this result need before it is released
A second, unrelated specimen comes in on the same shift. The technologist dips the Multistix 10 SG strip, gets distracted by a phone call, and reads the pads three and a half minutes after removal instead of at the bottle-label times. The protein pad shows a color that was not present at one minute but has since darkened.
A color that appears or changes after the pad's assigned read time, and specifically after the Multistix 10 SG IFU's two-minute limit, is not an interpretable analytical result; it is chemical drift on the pad. Reporting a late-read color as a graded result would misrepresent what the chemistry actually measured, since the reaction was never captured at its validated time point.
Separately, consider the escalation drill: a released panel comes back with blood 2+, nitrite positive, and leukocyte esterase 2+, and the ordering unit asks whether this confirms a urinary tract infection before microscopy is available. The correct bounded action is to state what the strip shows, state its limits, and hold the escalation until the panel is correlated with microscopy or another confirmatory method, not to answer the clinical question the strip cannot answer.
A defensible response separates the observed pad result from any clinical interpretation, and it never treats an out-of-window or unretested color as reportable.
Ordering exercise
Put the bounded escalation steps in the order that protects both the result and the reader who receives it, from the abnormal panel above (blood 2+, nitrite positive, leukocyte esterase 2+) to a documented handoff.
1. Notify per local policy
Communicate and, if criteria are met, escalate the correlated finding to the ordering unit under the laboratory's own communication and critical-value policy.
2. Document the objective finding
Write the finding, its limitation, and the correlation in objective terms without naming a clinical diagnosis.
3. Correlate with microscopy
Compare the direct heme pad and the clinical-surrogate nitrite and leukocyte-esterase signals against the same specimen's microscopic findings for red cells, white cells, and bacteria.
4. Check timing, storage, and specimen handling
Confirm the strip was read at its assigned time, storage and lot were within date, and the specimen was fresh and well mixed before ruling those out as the cause.
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