A patient is learning to use a glucometer at home. Which action gives the most reliable capillary glucose result?

Correct answer: A. Wash and dry the hands before obtaining the sample

  • A. Wash and dry the hands before obtaining the sample
  • B. Clean the finger with alcohol and test while wet
  • C. Squeeze the finger firmly until a large drop forms
  • D. Test immediately after eating a sugary snack

Explanation

Washing and drying removes food residue and prevents dilution of the blood sample. Sugar on the fingers can produce a falsely high reading, while excessive squeezing may mix tissue fluid with blood.

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About Endocrine and Diabetes Nursing

Covers diabetes mellitus, insulin therapy, hypoglycaemia, diabetic ketoacidosis, hyperosmolar states and common thyroid, adrenal and pituitary disorders. It includes blood glucose monitoring, diet, foot care, sick-day management and the clinical differences between type 1 and type 2 diabetes and between diabetic ketoacidosis and hyperosmolar hyperglycaemic state.

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