You are called the casino 63-year-old male who is complaining of a severe headache that occurred immediately after he got out of bed this morning. He's also having a difficult time speaking. He tells you if he takes a blood thinner as a result of his irregular heart condition. Which of the following assessments would be the most important? Ascertain whether he has any allergies. Assess his temperature and ability to walk. Assess whether he has unilateral weakness. Identify what type of blood thinner he is taking.