A cancer patient requires supplemental oxygen at home through an oxygen cylinder. The nurse assigned ...

Ans: B
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To determine the effectiveness of teaching in this case, the nurse must evaluate the patient's brother's knowledge of the materials presented. This can be done by asking the patient's brother to demonstrate or explain the presented information. The nurse should not ask questions such as Do you understand? as the patient may be uncomfortable admitting a lack of understanding. Asking questions related to the procedure may confuse the person. Asking the patient's brother to document the technique would not provide enough information about whether or not he does understand what to do.