The word that has same meaning as the italicized word in both the sentences is Option A, patient. Patient means the person receiving medical treatment. It also means able to accept delays and uncomplaining. Sentence I means that we should be calm and patient in all situations. Sentence II means the patient should be given desired attention, when medical treatment is given to him. Option B 'mute' means silent. Option C 'sick' means unwell. Option D 'concerned' means worried or anxious. Thus, the options B, C and D are incorrect to be used in both the given sentences and the correct option is Option A, patient.