An older female client comes to the clinic for a regular check-up. The client tells the nurse that she has increased her daily doses of acetaminophen for the past month to control joint pain. Based on this patient's comment, which previous laboratory results should the nurse compare with today's laboratory report?

Determine if there is a decrease in serum potassium due to renal compromise

Expect to find an increase in today's activated partial thromboplastin time (APTT) as compared to last quarter's due to bleeding.

Look at last quarter's hemoglobin and hematocrit, expecting an increase today due to dehydration.

Look for an increase in today's lactic dehydrogenase (LDH) compared to the previous one to assess for possible liver damage.