An occupational health nurse at a group of health care clinics is planning activities to prevent and control the spread of communicable disease. The nurse should identify that which of the following activities is a secondary level of prevention?

A. Sputum culture is used to diagnose active tuberculosis but is not typically used for routine screening of asymptomatic individuals.

B. Chest x-ray can detect active tuberculosis or its complications but is not typically used for routine screening of asymptomatic individuals.

C. QuantiFERON-TB Gold blood analysis is a blood test that detects the presence of tuberculosis infection but is not typically used for routine screening of asymptomatic individuals.

D. The Mantoux test, also known as the tuberculin skin test (TST), is commonly used for routine screening of tuberculosis infection in asymptomatic individuals, including new employees in healthcare settings.

A. Using the injection port farthest from the IV catheter insertion site is not necessary for administering an IV bolus of medication and may not be practical depending on the setup of the IV tubing.

B. Occluding the IV tubing above the injection port prevents the bolus medication from flowing into the continuous IV infusion, ensuring that the medication is delivered directly to the patient.

C. Checking for blood return after medication administration is not relevant in this context, as albumin 5% is administered intravenously and does not require blood return.

D. Flushing the IV tubing with a heparinized solution is not necessary for administering an IV bolus of medication and may not be appropriate for all medications.