A nurse is reviewing the arterial blood gas values of a client who has chronic kidney disease. Which of the following sets of values should the nurse expect?
pH 7.25, HCO3- 19mEq / L PaCO2 30 mm Hg
pH 7.30, HCO3-26 26mEq / L PaCO2 50 mm Hg
pH 7.50 0. HCO * 3 - 20mE /L, PaCO2 32 mm Hg
pH 7.55, HCO3- 30mEq / L PaCO2 31 mm Hg
The Correct Answer is A
In a client with chronic kidney disease (CKD), metabolic acidosis is a common acid-base disorder due to impaired excretion of acid and decreased bicarbonate reabsorption in the kidneys. The arterial blood gas values associated with metabolic acidosis in CKD are a low pH (acidemia), low bicarbonate (HCO3-), and normal or low partial pressure of carbon dioxide (PaCO2). Option A fits this pattern, with a pH of 7.25 (acidic), HCO3- of 19 mEq/L (low), and a PaCO2 of 30 mm Hg (within the normal to low range).
Option B shows a pH of 7.30 (acidic) but with a higher bicarbonate level of 26 mEq/L, which is not consistent with metabolic acidosis. The elevated bicarbonate level suggests metabolic alkalosis, which is not expected in a client with CKD.
Option C has a pH of 7.50 (alkaline) with an elevated bicarbonate level of 20 mEq/L and a low PaCO2 of 32 mm Hg. This set of values is indicative of metabolic alkalosis, which is not expected in a client with CKD.
Option D has a pH of 7.55 (alkaline) with an elevated bicarbonate level of 30 mEq/L and a low PaCO2 of 31 mm Hg. This set of values is indicative of metabolic alkalosis, which is not expected in a client with CKD.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Among the given laboratory test results for a client with recently diagnosed hypertension, the most important result to communicate to the health care provider is option (A), "Serum creatinine of 2.8 mg/dL."
Serum creatinine is a measure of kidney function, and a value of 2.8 mg/dL indicates elevated creatinine levels. Elevated serum creatinine is a concerning finding, as it suggests decreased kidney function or kidney impairment. Hypertension can have a significant impact on the kidneys, and kidney damage is a common complication of uncontrolled high blood pressure.
The kidneys play a crucial role in regulating blood pressure by excreting waste products and excess fluids from the body. When kidney function is compromised due to hypertension, it can further worsen the blood pressure control, leading to a vicious cycle of kidney damage and worsening hypertension.
Option (B), "Serum hemoglobin of 14.7 g/dL," is within the normal range and does not indicate an immediate concern related to the client's hypertension.
Option (C), "Blood glucose level of 96 mg/dL," is also within the normal range for blood glucose and may not be directly related to the client's hypertension.
Option (D), "Serum potassium of 4.5 mEq/L," is within the normal range. While potassium levels are essential to monitor, they are not the most critical concern compared to kidney function in this context.
The elevated serum creatinine level suggests a potential complication of hypertension, namely kidney damage or decreased kidney function. Therefore, it is essential to communicate this finding promptly to the health care provider for further evaluation and appropriate management to address the client's kidney health and optimize blood pressure control.
Correct Answer is C
Explanation
The client's presentation of chest pain radiating to the left arm, sweating, shortness of breath, epigastric discomfort, cool and diaphoretic skin, tachycardia, and ST elevation on the electrocardiogram (ECG) are indicative of myocardial infarction (heart attack). These symptoms and findings are typical of acute coronary syndrome, specifically an ST-segment elevation myocardial infarction (STEMI).
Option A (Ischemic Stroke) is not the correct answer because the symptoms described in the client's presentation are primarily related to the cardiovascular system and not indicative of an ischemic stroke.
Option B (Chronic Stable Angina) is not the correct answer because chronic stable angina typically presents with chest pain on exertion or stress, and it usually subsides with rest or nitroglycerin. The client's symptoms of chest pain at rest, along with other findings, are more concerning for an acute cardiac event like a myocardial infarction.
Option D (Cardiogenic Shock) is a severe complication that can occur following a myocardial infarction, but the information provided in the scenario does not suggest that the client is in cardiogenic shock at this time. The client's blood pressure is not mentioned in the scenario, which is a crucial parameter to assess for cardiogenic shock.
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