A nurse is providing teaching about blood pressure measurement to a client who has hypertension. Which of the following instructions should the nurse include?

Choice A reason: Offering the client frozen banana as a snack is an appropriate intervention for the nurse to take because it can help reduce nausea and stimulate appetite. Frozen banana is cold, bland, and easy to digest, which are characteristics of antiemetic foods. Frozen banana also provides potassium, vitamin C, and fiber for the client.

Choice B reason: Serving the client hot meals is not an appropriate intervention for the nurse to take because it can worsen nausea and vomiting. Hot meals are aromatic, spicy, and greasy, which are characteristics of emetic foods. Hot meals can also irritate the stomach lining and trigger the gag reflex.

Choice C reason: Avoiding serving sauces or gravies is not an appropriate intervention for the nurse to take because it can cause dehydration and malnutrition. Sauces and gravies are liquid, mild, and moist, which are characteristics of antiemetic foods. Sauces and gravies can also enhance the flavor and texture of bland foods and provide calories and nutrients for the client.

Choice D reason: Discouraging the use of a straw is not an appropriate intervention for the nurse to take because it can prevent adequate fluid intake and hydration. Using a straw can help the client sip small amounts of clear liquids, such as water, ginger ale, or broth, which are antiemetic fluids. Using a straw can also reduce the exposure to odors and tastes that may cause nausea.

Choice A reason: Serum creatinine 3.5 mg/dL is high and indicates the need for further assessment. Creatinine is a waste product of muscle metabolism that is filtered by the kidneys. High creatinine levels can indicate kidney damage or impaired renal function.

Choice B reason: Hematocrit 45% is within the normal range (37-47% for women, 40-50% for men), and it does not indicate the need for further assessment. Hematocrit is the percentage of red blood cells in the blood. Low hematocrit levels can indicate anemia, bleeding, or hemolysis.

Choice C reason: Blood urea nitrogen 18 mg/dL is within the normal range (7-20), and it does not indicate the need for further assessment. Blood urea nitrogen is a waste product of protein metabolism that is filtered by the kidneys. High blood urea nitrogen levels can indicate dehydration, kidney damage, or high protein intake.

Choice D reason: Sodium 140 mEq/L is within the normal range (135-145), and it does not indicate the need for further assessment. Sodium is an electrolyte that helps maintain fluid balance, blood pressure, and nerve impulses. Low or high sodium levels can cause confusion, seizures, or coma.