A nurse is reviewing the BUN and creatinine levels of an older adult patient with chronic kidney disease. The nurse should anticipate which of the following findings?
BUN 8 mg/dL and creatinine 0.7 mg/dL
BUN 45 mg/dL and creatinine 8 mg/dL
BUN 23 mg/dL and creatinine 1.0 mg/dL
BUN 10 mg/dL and creatinine 0.3 mg/dL
The Correct Answer is B
Choice A reason:
A BUN level of 8 mg/dL and a creatinine level of 0.7 mg/dL are within normal ranges for a healthy individual without kidney disease. In chronic kidney disease (CKD), we would expect these values to be elevated due to the kidneys' reduced ability to filter waste products from the blood.
Choice B reason:
A BUN level of 45 mg/dL and a creatinine level of 8 mg/dL are significantly higher than the normal range, which is consistent with impaired kidney function seen in CKD. These elevated levels indicate that the kidneys are not effectively filtering urea and creatinine from the blood, leading to their accumulation.
Choice C reason:
A BUN level of 23 mg/dL and a creatinine level of 1.0 mg/dL could be seen in the early stages of CKD. While the creatinine level is within the normal range, the BUN level is slightly elevated, which may suggest a decline in kidney function.
Choice D reason:
A BUN level of 10 mg/dL and a creatinine level of 0.3 mg/dL are both below the normal range. This is an unlikely finding for a patient with CKD, as kidney impairment typically leads to increased levels of these substances in the blood.
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Correct Answer is A
Explanation
Choice A reason: Drink 3L of fluid every day
Drinking adequate fluids, especially water, is one of the most effective ways to prevent kidney stones. Fluids dilute the substances in urine that lead to stones. For someone with a history of kidney stones, drinking about 3 liters of water each day can help prevent stone formation.
Choice B reason: Take 3,000 mg of vitamin C daily
High doses of vitamin C can increase the risk of kidney stones as the body converts vitamin C into oxalate, which can then form stones. Therefore, taking 3,000 mg of vitamin C daily is not recommended for individuals prone to calcium oxalate stones.
Choice C reason: Restrict calcium intake to one serving per day
Contrary to what might seem intuitive, restricting calcium intake is not generally advised for preventing calcium oxalate stones. Adequate dietary calcium can help reduce the amount of oxalate being absorbed by the body, thus lowering the risk of stone formation. It's important to consume calcium-rich foods in moderation and not to restrict them severely.
Choice D reason: Eat 12 oz of animal protein daily
A high intake of animal protein can increase the risk of kidney stones in susceptible individuals. Animal protein can increase calcium and oxalate levels in urine and reduce levels of citrate, a substance that prevents stones. Therefore, it's recommended to limit animal protein intake rather than consume large amounts.
Correct Answer is D
Explanation
Choice A reason:
Using closed-ended questions when obtaining a health history can be limiting and may not provide the full context of the patient's sexual health risks. Open-ended questions are generally recommended to encourage a more comprehensive discussion about sexual behaviors and risks.
Choice B reason:
A client's reproductive health history is crucial for counseling purposes. It provides insight into potential risks for STIs and helps tailor the counseling to the client's specific needs and circumstances.
Choice C reason:
Referring a client to genetic counseling for having had an STI is not typically necessary. Genetic counseling is more relevant for hereditary conditions and is not a standard part of STI management.
Choice D reason:
Asking about a client's exposure to past or present STIs is essential in STI counseling. It helps assess the client's risk level and informs the necessary prevention and treatment strategies.