Problem: The nurse has been made aware of laboratory test results for assigned clients. Which of the following test results would require immediate follow-up? Click the exhibit button for additional client information. 1. a decrease in platelet count from 175,000/mm (175 × 10 /L) to 86,000/mm (86 × 10 /L) for a client receiving a heparin infusion 2. a BUN of 24 mg/dL (8.57 mmol/L) for a client with dehydration 3. a WBC count of 2000/mm (2.0 × 10 /L) for a client with myelodysplastic syndrome 4. a decrease in hemoglobin from 8.1 g/dL (81 g/L) to 7.9 g/dL (79 g/L) for a client with sickle cell diseaseLaboratory reference ranges Platelets 150,000-400,000/mm (150-400 × 10 /L) BUN 10-20 mg/dL (3.6-7.1 mmol/L) WBCs 5000-10,000/mm (5-10 × 10 /L) Hemoglobin Male: 14.0-18.0 g/dL (140-180 g/L) Female: 12.0-16.0 g/dL (120-160 g/L). Looking for Assignment Help?