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A nurse is administering a heparin flush to a client with a subclavian central line, but is unable to use the syringe to administer the flush and cannot draw back any blood from the line. The nurse initially suspects a mechanical occlusion of the line. Which of the following actions is most appropriate?A. Ask the client to sit up, take a deep breath, and coughB. Pump the syringe several times by pressing down with short, quick thrustsC. Administer a thrombolytic medication such as urokinaseD. Remove the catheter
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