AQT90 FLEX NTproBNP (N-terminal Pro-brain Natriuretic Peptide) 2 Test Kit - Reference Interval Study Protocol - China

Inclusion criteria

Subjects who meet all the following criteria are eligible for inclusion:

• Voluntarily participate in this study and sign informed consent;
• Body Mass Index (BMI) ≥18.5 and <28kg/ m2;
• Age ≥18 years old;
• Through the investigator's consultation with the subjects, evaluate the subjects who meet the requirements of the reference individual of this study (refer to the "reference individual questionnaire").

Exclusion criteria

Subjects who meet any of the following criteria will be excluded:

• Physical examination, laboratory test/examination results meet any of the following:

• eGFR(estimated glomerular filtration rate) (formula: CKD-EPI, chronic kidney disease epidemiology collaboration) < 60 mL/min/1.732
• Systolic blood pressure ≥130 mm Hg and/or diastolic blood pressure ≥80 mmHg
• Glycated hemoglobin A1c (HbA1c) ≥ 6.0%; or fasting blood glucose ≥ 7.0 mmol/L
• Total cholesterol ≥ 6.22 mmol/L and/or triglycerides ≥ 2.26 mmol/L
• High-sensitivity troponin: Female: ≥15.6 pg/mL (ng/L), Male: ≥34.2 pg/mL (ng/L)
• Electrocardiogram, with obvious abnormalities such as those that may cause cardiac structural changes or risk factors for arrhythmia as assessed by the investigator
• Subjects who are unable to provide a sufficient volume (≈2 mL) of EDTAanticoagulated whole blood sample;
• Subjects who withdraw informed consent;
• Subjects assessed by the investigator as unsuitable for inclusion in this study.