Comparison of First and Second Capillary Blood Drops for Blood Glucose Measurement

NCT07624266 | Completed

• 1 other identifier: 2024/212-BAEK239
• Study Type: observational
• Target: 64
• Locations: 1 country
• Sites: 1

Brief Summary

This study aimed to evaluate the effects of different capillary blood sampling techniques on blood glucose measurement results in people with diabetes. Blood glucose measurements obtained from the first and second capillary blood drops after antiseptic application were compared. In addition, measurements obtained with and without finger squeezing were evaluated. The findings may contribute to improving standardization in capillary blood glucose monitoring procedures and reducing unnecessary repeated finger punctures in clinical practice.

Conditions

Diabetes Mellitus

Keywords

Blood glucose monitoring; Capillary blood sampling; First blood drop; Finger squeezing; Glucometer; Self-monitoring of blood glucose

Outcome Measures

Primary Outcomes (2)

• Difference between blood glucose measurements obtained with and without finger squeezing

  Comparison of blood glucose values obtained from capillary blood samples collected with and without finger squeezing. Blood glucose measurements were obtained consecutively during a single study visit (Day 1), first from a capillary blood sample collected without finger squeezing and subsequently from a capillary blood sample collected with finger squeezing during the same blood sampling and measurement session

  Day 1

• Difference between blood glucose values obtained from the first and second capillary blood drops following antiseptic application

  Comparison of blood glucose values obtained from the first and second capillary blood drops after antiseptic application. The first and second blood drop measurements were obtained consecutively during the same capillary blood sampling and measurement session.

  Day 1

Interventions

Capillary Blood Sampling Techniques OTHER

Blood glucose measurements obtained from the first and second capillary blood drops and measurements performed with and without finger squeezing were compared using the same glucometer device under standardized clinical conditions.

Also known as: Capillary Blood Glucose Measurement Procedures

Eligibility Criteria

• Age: 18 Years - 90 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Adults with diabetes who were hospitalized in the internal medicine clinics of a state hospital during the study period and met the study inclusion criteria.

You may qualify if:

• Aged 18 years or older
• Diagnosed with diabetes mellitus
• Provided written and verbal informed consent to participate in the study
• Eligible for blood glucose measurement after at least 6 hours of fasting
• No condition preventing capillary blood sampling from the fingertip
• Physically and mentally able to undergo the measurement procedures specified in the study

You may not qualify if:

• Presence of a physical disability or deformity affecting fingertip blood glucose measurement
• Presence of coagulation disorders (e.g., hemophilia) or severe medical conditions affecting blood sampling
• Use of steroids within the previous 24 hours that could affect blood glucose levels
• Presence of physical or mental conditions limiting compliance with study procedures
• Inability or unwillingness to provide informed consent

Sponsors & Collaborators

• Ordu University: lead

Study Sites (1)

Ordu Univercıty

Altinordu, Ordu, 52200, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Diabetes Mellitus

Condition Hierarchy (Ancestors)

Glucose Metabolism Disorders; Metabolic Diseases; Nutritional and Metabolic Diseases; Endocrine System Diseases

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Professor

Study Record Dates

• First Submitted: May 19, 2026
• First Posted: June 3, 2026
• Study Start: February 1, 2025
• Primary Completion: July 30, 2025
• Study Completion: December 30, 2025
• Last Updated: June 3, 2026

Record last verified: 2026-05

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)