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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Diuretics are the primary class of drugs used to treat volume overload in patients with acute decompensated heart failure (ADHF). These medications help to increase urine output, reducing the overall fluid volume in the body and relieving congestion in the lungs and other tissues.
The goal of using diuretics in ADHF is to alleviate symptoms such as shortness of breath, edema (swelling), and fluid retention by promoting the elimination of excess fluid. The most commonly used diuretics in this setting are loop diuretics (e.g., furosemide, bumetanide), which have a potent diuretic effect and can rapidly reduce fluid overload.
While narcotics, vasodilators, and positive inotropes may have roles in specific cases of ADHF, they are not the primary drugs used to treat volume overload. Narcotics may be used for pain management, vasodilators to reduce afterload (the resistance the heart has to pump against), and positive inotropes to increase the heart's contractility in certain situations. However, the first-line treatment for volume overload in ADHF is diuretic therapy.
Correct Answer is B
Explanation
The most important finding to report to the healthcare provider in a client admitted to the intensive care unit (ICU) with a hypertensive emergency is option B, "The client cannot move the left arm and leg when asked to do so."
Hypertensive emergencies are critical situations where extremely high blood pressure levels can lead to damage or dysfunction in vital organs, such as the brain, heart, kidneys, and eyes. Neurological symptoms are particularly concerning in this context, as they may indicate acute brain injury or stroke resulting from uncontrolled high blood pressure.
Option A, "Tremors are noted in the fingers when the client extends the arms," could be concerning but is not as immediately critical as the neurological deficit described in option B. Tremors can have various causes and may not directly relate to the hypertensive emergency unless other signs or symptoms of neurologic impairment are also present.
Option C, "Urine output over 8 hours is 250 mL less than the fluid intake," is relevant to monitor the client's fluid status and kidney function, but it does not indicate an acute, life-threatening condition that requires immediate attention like the neurological deficit in option B.
Option D, "The client reports a headache with pain at level 7 of 10 (0 to 10 scale)," is concerning and may be a symptom of the hypertensive emergency, but it is not as urgent as the neurological findings. Headache can be a symptom of elevated blood pressure, but it is not sufficient on its own to determine the severity of the hypertensive crisis.
In a hypertensive emergency, the priority is to identify and manage potential complications, such as neurological deficits, acute organ damage, or signs of target organ dysfunction. Prompt reporting of any neurological changes is crucial, as it may prompt immediate interventions to prevent further neurological deterioration. The healthcare provider needs to assess the client's neurological status promptly and determine appropriate management to prevent further complications.
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