When verifying a patient's safety prior to administering Tc-99m, what should be considered?

• A. Only recent meals before the procedure
• B. Medical history, allergies to radiopharmaceuticals, and kidney function
• C. Patient's favorite activities
• D. Only the patient's age

Answer: (B)

When verifying a patient's safety prior to administering Technetium-99m (Tc-99m), it is essential to consider medical history, allergies to radiopharmaceuticals, and kidney function. This is crucial because understanding the patient's medical background helps identify any potential adverse reactions or contraindications for the administration of the radiopharmaceutical.

Allergies to radiopharmaceuticals are particularly important; if a patient has had previous reactions to Tc-99m or similar compounds, alternative imaging agents may need to be considered to ensure patient safety. Additionally, kidney function is vital to assess because Tc-99m is primarily excreted through the kidneys. Impaired renal function can lead to prolonged exposure of the kidneys to the tracer, increasing the risk of toxicity or adverse effects.

Evaluating medical history creates a comprehensive profile that helps healthcare providers make informed decisions about the patient's suitability for the procedure and helps to mitigate risks associated with the use of radiopharmaceuticals.