A nurse is teaching a client about the use of cognitive reframing for stress management. Which of the following statements by the client indicates an understanding of the teaching?

A. "Since injuring my knee, I've decided to become the team manager."
Option A represents an adaptive use of the ego defense mechanism known as sublimation. Sublimation is a process in which a person channels potentially negative or harmful impulses or feelings into more socially acceptable and constructive activities. In this case, the adolescent with the injured knee is using the opportunity to become the team manager, which is a positive and constructive way to stay engaged with the team despite the setback of the injury.

B. "Since my mom died, I focus all my attention on my grades."
This is an example of reaction formation, a defense mechanism where someone overemphasizes the opposite of their true feelings. In this case, the individual might be hiding or avoiding their grief by focusing on grades.

C. "I didn't tell the teacher about the bullying because it wouldn't have changed anything."
This is an example of rationalization, where the individual provides a logical-sounding but potentially inaccurate explanation for their actions. It can be a defense mechanism to justify or make more acceptable one's choices.

D. "I'm not even going to think about writing that thesis paper until after prom."
This is an example of procrastination or avoidance, which is not an ego defense mechanism but a coping or time-management strategy. It doesn't represent an adaptive use of a defense mechanism in this context.

A. Aspartate aminotransferase 20 units/L:
This result indicates the level of an enzyme in the blood. A value of 20 units/L is within the normal range (usually 10-40 units/L). Aspartate aminotransferase (AST) is an enzyme found in the liver, heart, muscles, and other tissues. Elevated levels might indicate liver damage, but 20 units/L is a normal value.

B. Platelets 250,000/mm3:
Platelets are components of blood that help with clotting. A value of 250,000/mm3 is within the normal range (normal range is typically 150,000 to 450,000/mm3). Normal platelet levels are crucial for preventing excessive bleeding or clotting.

C. Sodium 140 mEq/L:
Sodium is an electrolyte essential for maintaining the body's water balance and nerve function. A level of 140 mEq/L falls within the normal range (typically 135-145 mEq/L). Proper sodium levels are important for overall body functioning.

D. Fasting glucose 175 mg/dL:
This indicates the concentration of glucose (sugar) in the blood after a period of fasting. A level of 175 mg/dL is elevated. Fasting glucose levels above 125 mg/dL may suggest diabetes or prediabetes. Elevated glucose levels are a cause for concern as they indicate poor blood sugar regulation, which can lead to various health complications, including diabetes.