Table 2.

Preanalytical parameters for rigor, reproducibility, quality assessment, and control

Subject	Specimen Procurement	Specimen Morphology	Specimen Storage/Shipping
Age	Procedure data	Gross assessment	Storage time
Race	Procedure type (U/S, IR, Surgical)	Integrity (intact, fragmented)	Storage temperature
Sex	Location/site	%Cortex	Storage medium
Height	Procurement time	%Medulla	Storage container
Weight	Specimen collection media	Microscopic assessment	Shipping time
BMI	Tissue transport time to lab	# Glomeruli	Shipping container
Clinical labs (blood, urine)	Transport temperature	%Global glomerulosclerosis (age corrected)	Shipping image
eGFR	Preservation media/condition	Necrosis	Receiving time
Clinical diagnosis	Supplies/reagent details	Hemorrhage	Receiving image
Pathology diagnosis	Processing time	Autolysis	Storage time receiving
Comorbidities	Size	Tubular atrophy	Storage temp receiving
Medications	Image	Interstitial fibrosis
Social history		Interstitial inflammation
Family history		Image (gross, H&E, PAS)
		Freezing artifacts