Rapid and Self-Administrable Capillary Blood Microsampling Demonstrates Statistical Equivalence with Standard Venous Collections in NMR-Based Lipoprotein Analysis
Roberts et al.
The finding, in our words
Capillary blood microsamples analysed by 1H NMR demonstrated statistical equivalence and high agreement with matched venous collections across multiple lipoprotein subfractions and inflammatory glycoprotein markers. This confirms that rapid capillary microsampling can reliably support decentralised metabolic and cardiovascular profiling.
A paraphrase to the Library’s standard, never the abstract. The source is one link away and is always the authority.
The homeRNA capillary blood collection and stabilization platform successfully captured lipopolysaccharide-induced inflammatory gene expression profiles. These transcriptomic responses were comparable to those obtained from traditional venous blood samples stabilized with RNAlater or PAXgene, demonstrating the platform's suitability for remote transcriptomic monitoring.
Brown et al., Analytical chemistry (paywalled) · source ↗
Self-collected capillary blood samples posted by standard mail showed high concordance with couriered venous samples for HbA1c, creatinine and lipid parameters, supporting their use for remote monitoring in diabetes management and screening.
Hoffmeister et al., Journal of diabetes investigation · source ↗
Plasma lipidomes from self-collected upper-arm capillary blood were statistically indistinguishable from paired venous plasma, most classes at r=0.95–0.99, validating at-home capillary self-collection for lipidomics.
A 2025 review maps 28 microsampling devices, from dried spots and volumetric absorptive tips to upper-arm liquid capillary collectors, and names what a laboratory must control before their results are used: the haematocrit effect in non-volumetric dried samples, interstitial fluid from finger milking, volume, haemolysis and transport stability. Regulators on both sides of the Atlantic ask for the same two things, a device the patient can use safely and a sample fit for the test.
Capillary finger-stick blood showed excellent comparability with venous samples for 30 of 33 routine chemistry analytes against total allowable error criteria, and met CLIA 2024 proficiency testing limits for all but glucose. This validates capillary sampling as a clinically acceptable alternative for most routine tests, benefiting patients with needle phobia and enabling remote sampling.
Doeleman et al., Clinical chemistry and laboratory medicine (paywalled) · source ↗