A client receives a prescription for penicillin 1.2 million units IM. The available vial is labeled, "600,000 units/2 mL." How many mL should the nurse administer? (Enter numeric value only.)

A. Avoid the consumption of alcohol:
This instruction is appropriate because alcohol can increase the risk of liver damage when taking acetaminophen. Clients should avoid alcohol to prevent potential adverse effects on the liver.

B. Report any color changes to urine:
Acetaminophen can cause changes in urine color, such as darkening, which might indicate liver problems or other issues. Reporting such changes is important for monitoring potential side effects and ensuring timely intervention.

C. Take additional doses as needed:
This statement requires clarification because acetaminophen should be taken according to the prescribed dosage and frequency. Taking additional doses can lead to an overdose and serious liver damage. Clients should follow the recommended dosing guidelines and consult their healthcare provider if additional pain relief is needed.

D. Stop medication if a rash develops:
If a rash develops, it could be a sign of an allergic reaction or other adverse effect. Stopping the medication and seeking medical advice is appropriate to prevent further complications.

A. High density lipoprotein (HDL):
HDL levels are important for cardiovascular health as higher levels are associated with a lower risk of coronary artery disease. However, atorvastatin primarily targets LDL levels. While increasing HDL is beneficial, it is not the primary measure of atorvastatin's effectiveness.

B. Low density lipoprotein (LDL):
Atorvastatin is a statin medication used to lower LDL cholesterol levels, which is a major risk factor for coronary artery disease. A decrease in LDL levels indicates that the medication is having its desired effect, reducing the risk of cardiovascular events.

C. Creatine phosphokinase (CK):
CK levels are monitored to assess muscle damage or side effects related to statin use, such as rhabdomyolysis. While important for safety monitoring, changes in CK levels do not directly reflect the effectiveness of atorvastatin in managing cholesterol levels.

D. Prothrombin time (PT):
PT is used to evaluate blood clotting ability and is not directly related to the effectiveness of atorvastatin. It is more relevant for monitoring anticoagulant therapy rather than statin therapy for cholesterol management.