Prepare and analyze samples to study effects of drugs, gases, pesticides, or microorganisms on cell structure and tissue.

I have a batch of histology sample measurements and treatment conditions for the week's assays. Send the attached worksheet to Dr. Morales and lab manager Erin for sign-off, in that order, with a Thursday close-of-day deadline so we can schedule imaging Friday — verify the sample IDs, timepoints and reagent lot numbers are complete before sending.

Before I hand this to the PI, make the survival and morphology differences impossible to miss: put treatment names and N at the top, display percent viable and a clear fold-change column, highlight any missing control replicates, and flag any reagent lot numbers that differ across timepoints so a reviewer can approve in one read-through.

I just finished staining and noticed the vehicle control slide shows no signal while the treated slides look fine. Dr. Morales and Erin are on the approval chain; I worry this is either a staining error or a labeling swap but I can't tell which from the records. Do I rerun the control now and delay the imaging, or document and proceed with a repeat on the next batch? Recommend the likeliest cause and the best next move given a Friday imaging slot.

Across several weeks we lose time because reagent lot numbers and control IDs aren't captured consistently, forcing reruns or late sign-offs. We bleed imaging slots and the PI gets frustrated. What one habit change in how we log samples and reagents would most reliably stop these reruns and restore predictable scheduling?