A nurse is monitoring an older adult female client who had a myocardial infarction (MI) for the development of an acute kidney injury (AKI). Which of the following findings should the nurse identify as indicating an increased risk of AKI?

Magnesium 2.5 mEq/L

Serum osmolality 290 mOsm/kg H2O

Blood urea nitrogen (BUN) 20 mg/dL

Serum creatinine 1.8 mg/dL

Answer and Explanation

The Correct Answer is D

Choice A Reason: This is incorrect because magnesium 2.5 mEq/L is a normal value and does not indicate an increased risk of AKI. Magnesium is an electrolyte that plays a role in muscle and nerve function, blood pressure regulation, and energy production. The normal range for magnesium is 1.5 to 2.5 mEq/L.

Choice B Reason: This is incorrect because serum osmolality 290 mOsm/kg H2O is a normal value and does not indicate an increased risk of AKI. Serum osmolality is a measure of the concentration of solutes in the blood, such as sodium, glucose, and urea. The normal range for serum osmolality is 275 to 295 mOsm/kg H2O.

Choice C Reason: This is incorrect because blood urea nitrogen (BUN) 20 mg/dL is a normal value and does not indicate an increased risk of AKI. BUN is a measure of the amount of urea, a waste product of protein metabolism, in the blood. The normal range for BUN is 7 to 20 mg/dL.

Choice D Reason: This is correct because serum creatinine 1.8 mg/dL is an elevated value and indicates an increased risk of AKI. Creatinine is a waste product of muscle metabolism that is filtered by the kidneys. The normal range for serum creatinine is 0.6 to 1.2 mg/dL for women and 0.7 to 1.3 mg/dL for men. An increase in serum creatinine indicates a decrease in kidney function and glomerular filtration rate (GFR).

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Correct Answer is D

Explanation

Choice A Reason: This is incorrect because respiratory alkalosis is characterized by a high pH and a low PaCO2, indicating that the client is hyperventilating and losing too much carbon dioxide.

Choice B Reason: This is incorrect because metabolic acidosis is characterized by a low pH and a low bicarbonate level, indicating that the client has an excess of metabolic acids or a loss of base.

Choice C Reason: This is incorrect because metabolic alkalosis is characterized by a high pH and a high bicarbonate level, indicating that the client has an excess of base or a loss of metabolic acids.

Choice D Reason: This is correct because respiratory acidosis is characterized by a low pH and a high PaCO2, indicating that the client is hypoventilating and retaining too much carbon dioxide.

A. Headache B. Severe dyspnea C. Nausea D. Hypotension E. Hypotension

Correct Answer is ["B","D","E"]

Explanation

Choice A Reason: This choice is incorrect because headache is not a common manifestation of ARF. Headache may be caused by various factors such as dehydration, stress, sinusitis, or migraine, but it does not indicate ARF.

Choice B Reason: This choice is correct because severe dyspnea is a common manifestation of ARF. Dyspnea is a difficulty or discomfort in breathing that aﬀects the oxygen delivery and carbon dioxide removal from the body. It may be caused by various factors such as lung disease, heart disease, anemia, or anxiety, but it indicates ARF when it is severe and persistent.

Choice C Reason: This choice is incorrect because nausea is not a common manifestation of ARF. Nausea is a sensation of uneasiness or discomfort in the stomach that may precede vomiting. It may be caused by various factors such as food poisoning, motion sickness, medication side eﬀects, or pregnancy, but it does not indicate ARF.

Choice D Reason: This choice is correct because hypotension is a common manifestation of ARF. Hypotension is a condition in which the blood pressure is lower than normal (less than 90/60 mm Hg). It may be caused by various factors such as dehydration, blood loss, sepsis, or shock, but it indicates ARF when it is due to reduced cardiac output or vasodilation from hypoxia.

Choice E Reason: This choice is correct because decreased level of consciousness is a common manifestation of ARF. Decreased level of consciousness is a condition in which the person has impaired awareness or responsiveness to stimuli. It may be caused by various factors such as brain injury, stroke, seizure, or drug overdose, but it indicates ARF when it is due to increased carbon dioxide levels (hypercapnia) or decreased oxygen levels (hypoxemia) in the brain.

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A nurse is monitoring an older adult female client who had a myocardial infarction (MI) for the development of an acute kidney injury (AKI). Which of the following findings should the nurse identify as indicating an increased risk of AKI?

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Explanation

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