A nurse is reinforcing teaching about dietary modifications to help control blood pressure with a client who has hypertension. Which of the following food choices by the client indicates an understanding of the teaching?

A. Clean the client's finger with hexachlorophene: Hexachlorophene is not recommended for cleaning the skin before blood glucose testing; a mild soap and water or an alcohol swab is typically used.
B. Apply the first drop of blood to the test strip: The first drop of blood is often not used due to potential contamination; the nurse should usually wipe away the first drop and use the second one.
C. Hold the client's finger in a dependent position: This is correct as holding the finger downward can help increase blood flow to the fingertip, facilitating easier blood collection.
D. Prick the central tip of the client's finger: Pricking the central tip can be painful; the sides of the fingertip are preferred for less discomfort and to avoid nerve endings.

A. Have the client drink contrast medium: This is incorrect as contrast medium is typically not required for an esophagogastroduodenoscopy (EGD); it is used for other types of imaging studies.
B. Shave the client from axillae to groin: This is incorrect; shaving is not necessary for an EGD procedure.
C. Administer a cleansing enema: This is incorrect as an enema is generally not required for an EGD, which focuses on the upper gastrointestinal tract.
D. Ensure the signed consent is in the medical record: This is correct as ensuring that the consent form is signed and documented is crucial for legal and procedural reasons before performing an EGD.