What precautions should be taken when administering insulin?

The correct choice highlights the crucial steps that must be taken when administering insulin to ensure patient safety and effective treatment. Verifying the patient's blood glucose level is vital because it allows the medication technician to determine whether insulin is needed based on the patient’s current glucose levels. Administering insulin without first checking may put the patient at risk for hypoglycemia or hyperglycemia, depending on their individual circumstances and glucose levels.

Additionally, ensuring proper technique for subcutaneous injection is essential to optimize insulin absorption and minimize complications, such as infections or improper delivery of the medication. Knowledge of injection sites, rotation of injection sites, and correct angle of injection are all part of this technique.

The other options lack these critical safety measures and do not follow best practices in medication administration, which can lead to adverse health outcomes for the patient.