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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View Related questions
Correct Answer is A
Explanation
Choice A reason:
It is essential to dry the prosthesis socket completely before applying it to the limb to prevent any moisture-related issues, such as skin irritation or infection. Moisture can create an environment conducive to bacterial growth and can also cause the prosthesis to slip or not fit properly.
Choice B reason:
While it is important to keep the skin of the stump moisturized, applying lotion or oil immediately before putting on the prosthesis is not advised. Lotions and oils can make the skin slippery, leading to a poor fit of the prosthesis or even causing the prosthesis to slip off. It is better to apply moisturizer at a time when the prosthesis will not be worn for a while, allowing the skin to absorb the lotion fully.
Choice C reason:
The prosthesis should not be in direct contact with the residual limb without proper padding or a liner. Direct contact can lead to pressure sores, skin irritation, and discomfort. Properly fitted socks or liners should be used to cushion the limb and ensure a comfortable, secure fit.
Choice D reason:
While some skin irritation may be expected when first using a prosthesis, persistent irritation is not normal and should be addressed by a healthcare provider. The prosthesis may need to be adjusted, or there may be an issue with the fit or the materials used. Skin irritation should not be accepted as a standard part of using a prosthesis.
Correct Answer is C
Explanation
Choice A reason: Hypertension
Hypertension, or high blood pressure, is not typically an expected finding in hypovolemic shock. In fact, one would expect the opposite, hypotension, due to the decreased circulating blood volume. Hypertension might be present in the initial stages due to compensatory mechanisms, but as the condition progresses, blood pressure usually drops.
Choice B reason: Bradypnea
Bradypnea, or abnormally slow breathing, is not a common finding in hypovolemic shock. Instead, tachypnea, or rapid breathing, may be observed as the body attempts to compensate for reduced oxygen delivery to tissues.
Choice C reason: Oliguria
Oliguria, or low urine output, is an expected finding in hypovolemic shock. As the blood volume decreases, the kidneys receive less blood flow, leading to reduced urine production. This is a protective mechanism to conserve body fluids, but it also indicates the severity of fluid loss and the need for urgent intervention.
Choice D reason: Flushing of the skin
Flushing of the skin is not an expected finding in hypovolemic shock. Instead, the skin may appear pale, cool, and clammy due to vasoconstriction and reduced blood flow to the periphery as the body prioritizes blood flow to vital organs.