A nurse in a community mental health clinic is assessing a client who began taking lithium carbonate 5 days ago. The client reports fine hand tremors and has a current lithium level of 1.2 mEq/L. Which of the following actions should the nurse take?

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.

A. Prepare the client for electroconvulsive therapy:
Electroconvulsive therapy (ECT) is not a standard or appropriate treatment for anorexia nervosa. ECT is primarily used for severe depression, bipolar disorder, and certain other mental health conditions. Anorexia nervosa is typically managed through psychotherapy, nutritional counseling, and medical monitoring, often in an outpatient or inpatient setting, depending on the severity of the disorder.

B. Weigh the client twice per day:
Frequent weighing is generally discouraged in the treatment of anorexia nervosa. Individuals with this disorder often have an unhealthy fixation on their weight. Frequent weigh-ins can exacerbate anxiety, foster an unhealthy relationship with food and body image, and reinforce obsessive thoughts about weight and appearance. Healthcare providers should monitor weight and nutritional status regularly, but the frequency should be determined based on the individual's specific needs and in a manner that does not worsen their anxiety.

C. Encourage the client to participate in family therapy:
This is the appropriate choice. Family therapy is often a crucial component of the treatment plan for anorexia nervosa. It helps address family dynamics, communication patterns, and any dysfunctional relationships that might contribute to the eating disorder. Family therapy provides a supportive environment for both the individual with anorexia and their family members, aiding in understanding, coping, and healing.

D. Set a weight gain goal of 2.2 kg (4.9 lb) per week:
Setting specific weight gain goals can be counterproductive and potentially harmful for individuals with anorexia nervosa. Rapid or arbitrary weight gain goals may lead to unhealthy eating behaviors, excessive exercise, or other dangerous practices in an attempt to meet the goal quickly. Instead, healthcare providers focus on a more individualized and gradual approach to weight restoration, ensuring that it is safe, sustainable, and in line with the client's overall health and well-being.