A nurse is preparing to admit a child with possible obstructive uropathy. The nurse should expect to draw which lab on this child?
1. Platelet count
2. BUN and creatinine
3. Partial thromboplastin time (PTT)
4. Blood culture
2
Rationale:
1. Platelet count is drawn when a bleeding disorder is suspected.
2. The BUN and creatinine are serum lab tests for kidney function. Obstructive uropathy is a structural or functional abnormality of the urinary system that interferes with urine flow and results in urine backflow into the kidneys; therefore, the BUN and creatinine will be elevated.
3. Partial thromboplastin time (PTT) is drawn when a bleeding disorder is suspected.
4. A blood culture is done when an infectious process is suspected.
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