Final answer:
The nurse can best assist a client post-laryngectomy in communication by offering a pad and pencil, as it provides an effective way to express thoughts and needs.
Step-by-step explanation:
The nurse can best help a client following a laryngectomy with communication by providing a pad and pencil. This allows the client to write down their thoughts and needs, facilitating communication despite their current inability to speak. It is the most immediate and direct method of communication after such a surgery. While checking on the client every 30 minutes and teaching simple sign language are supportive, they are not as effective or as immediate as providing a pad and pencil. Telling the client to use the call light may not be helpful if the client cannot communicate once the nurse responds to the light.