A nurse is monitoring a client following a thoracentesis. The nurse should identify which of the following manifestations as a complication and contact the provider immediately?

A. Teaching a client insulin injection technique.
Licensed practical nurses (LPNs) are trained to provide direct patient care, including the administration of medications and patient education. Teaching a client insulin injection technique falls within the scope of practice for an LPN.

B. Evaluating changes to a client’s pressure ulcer:
Assessing and evaluating changes in a client's condition, including pressure ulcers, involves clinical judgment and interpretation of findings, tasks typically performed by an RN.

C. Admission assessment of a new client:
Conducting comprehensive assessments, especially for new admissions, requires a higher level of nursing assessment skills and is generally within the scope of practice for an RN.

D. Scheduling a diagnostic study for a client:
The task of scheduling diagnostic studies involves organizational and administrative skills. RNs often handle coordination of care, including scheduling, as part of their responsibilities.

A. Pain in the affected leg could indicate worsening of cellulitis or a potential complication like deep vein thrombosis (DVT), but there is no immediate indication of a life-threatening condition. This client should be assessed, but may not be the top priority unless other signs of complications are present.

B. A serum calcium level of 10 mg/dL is within the normal range (8.5 to 10.5 mg/dL). A headache, while concerning, is not immediately life-threatening unless there are additional symptoms suggesting something more severe.

C.Reddish brown urine suggests hematuria, a symptom of glomerulonephritis. This could indicate ongoing kidney issues, but unless there are signs of severe kidney failure or systemic infection, this might not be the most urgent case.

D. A blood glucose level of 68 mg/dL is low and can lead to hypoglycemia, which can be immediately life-threatening if it progresses to severe hypoglycemia. Symptoms of hypoglycemia include confusion, dizziness, sweating, and can escalate to seizures or unconsciousness if not promptly treated.