Which statement by a client on isoniazid (INH) for tuberculosis requires follow-up?

The statement regarding taking isoniazid (INH) for tuberculosis that requires follow-up is the one indicating a three-month duration for the medication. Isoniazid is typically prescribed for a longer duration, often six to nine months, depending on the individual case and whether it is being used alone or in combination with other medications for tuberculosis treatment. Following up on this statement is crucial because if a client believes they only need to take the medication for three months, they may not adhere to the full treatment plan, potentially leading to treatment failure or the development of drug-resistant tuberculosis.

In contrast, the other statements reflect accurate information regarding isoniazid. Regular blood draws are indeed necessary to monitor for potential hepatotoxicity and other adverse effects associated with isoniazid. The understanding of not being infectious after three consecutive negative sputum samples is a key aspect of tuberculosis management, indicating effective treatment. Additionally, the acknowledgment of possible side effects, such as numbness and tingling in the hands and feet, relates to the risk of peripheral neuropathy associated with isoniazid use, which is important for clients to be aware of for early recognition and management.