Final answer:
Before starting lithium, evaluate medical history, kidney and thyroid function, cardiovascular health, and potential for pregnancy. A pregnancy test is crucial due to the teratogenic effects of lithium.
Step-by-step explanation:
Before starting a young woman on lithium, it is critical to evaluate her medical history, including kidney function, cardiovascular health, and potential for pregnancy. A thyroid function test is also necessary since lithium can affect thyroid activity. Evaluating for any signs of autoimmune diseases or other contraindications is important.
Informing the patient about possible side effects, such as weight gain, cognitive issues, or hand tremors, and establishing baseline health parameters is necessary. Additionally, a pregnancy test should be administered due to lithium's teratogenic risks. Ultimately, a tailored, patient-informed decision-making process is pivotal for initiating lithium therapy.