The nurse is caring for a postoperative hip fracture client who is complaining of chest pain and shortness of breath. What laboratory tests must be ordered for this client? Select all that apply
1. Platelet count
2. PTT
3. INR
4. WBC
5. BUN
1. Platelet count
2. PTT
Rationale:
Platelet count. The client is at high risk for a clotting disorder to develop. The platelet count measures the circulating platelets in the blood; platelets facilitate the clotting process. PTT. Partial thromboplastin time is a screening test used to detect deficiencies in all clotting factors except VII and XIII and to detect platelet variations, thus it would be appropriate to order. INR. The international normalized ratio monitors anticoagulant therapy, and it is generally used to monitor coumadin therapy. This client has not been diagnosed for the chest pain and has not been placed on anticoagulant therapy. WBC. The white blood count (WBC) is part of a complete blood count and is used to determine the presence of an infection, and would not be ordered. BUN. The blood urea nitrogen (BUN) measures the urea excreted by the kidneys and is used to detect a renal disorder or dehydration associated with increased BUN levels, and would be ordered to determine the cause of chest pain and shortness of breath.
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