Correct Answer: B

Rationale: The correct answer is B because the ability to demonstrate the appropriate technique shows that the client has acquired the psychomotor skills needed for insulin preparation. Merely discussing, stating an understanding, or writing the steps does not confirm that the client can physically perform the task correctly. Being able to demonstrate indicates practical application and mastery of the skill. Choice A is incorrect because discussing the technique does not necessarily mean the client can physically perform it. Choice C is incorrect as stating an understanding does not guarantee the client's ability to perform the task. Choice D is incorrect because writing the steps does not assess the client's physical execution of the technique.

Correct Answer: C

Rationale: The correct answer is C. Taking water pills (diuretics) only when feeling short of breath is incorrect. Diuretics should be taken regularly as prescribed to manage fluid retention. Option A is correct as daily weight monitoring helps track for fluid retention. Option B is correct as worsening leg swelling should prompt contacting the healthcare provider. Option D is correct as limiting salt intake is essential in managing heart failure. Therefore, option C is the statement that indicates a need for further teaching.

Correct Answer: B

Rationale: The correct response is to instruct the client that the stoma will become smaller when the initial swelling diminishes. This explanation helps reassure the client about the temporary appearance of the stoma. Choice A is incorrect because simply reassuring the client that he will become accustomed to the stoma's appearance does not address the immediate concern about the stoma size. Choice C is incorrect because offering to contact a support group does not directly address the client's current distress about the stoma size. Choice D is incorrect because encouraging the client to handle stoma equipment does not directly address the client's concern about the stoma size and may not be appropriate at this time.

Correct Answer: B

Rationale: The correct answer is B because the ability to demonstrate the appropriate technique shows that the client has acquired the psychomotor skills needed for insulin preparation. Merely discussing, stating an understanding, or writing the steps does not confirm that the client can physically perform the task correctly. Being able to demonstrate indicates practical application and mastery of the skill. Choice A is incorrect because discussing the technique does not necessarily mean the client can physically perform it. Choice C is incorrect as stating an understanding does not guarantee the client's ability to perform the task. Choice D is incorrect because writing the steps does not assess the client's physical execution of the technique.

Correct Answer: A

Rationale: Wounds healing by secondary intention involve the gradual filling of the wound with granulation tissue, leading to a higher risk of infection due to prolonged exposure. This makes choice A the correct answer. Choices B and C are incorrect because wounds healing by secondary intention take longer to heal and often result in more pain compared to wounds healing by primary intention. Choice D is also incorrect as wounds healing by secondary intention usually require more frequent dressing changes to prevent infection and promote healing.