Maria, an elementary student, was rushed to the hospital due to vomiting and a decreased level of consciousness. The patient displays slow and deep (Kussmaul breathing), and he is lethargic and irritable in response to stimulation. He appears to be dehydrated-his eyes are sunken and mucous membranes are dry-and he has a two-week history of polydipsia, polyuria, and weight loss. Measurement of arterial blood gas shows pH 7.0, Pa02 90 mm Hg. PaCO2 23 mm Hg, and HCO3 12 mmol/L; other results are Na+ 126 mmol/L. K+ 5 mmol/L, and Cl-95 mmol/L.
What is your assessment?
Respiratory Acidosis, Partially Compensated
Metabolic Acidosis, Partially, Compensated
Metabolic Alkalosis. Uncompensated
Respiratory Acidosis, Uncompensated
The Correct Answer is B
A. This option can be ruled out because the pH and PaCO2 levels indicate acidosis, but the compensation is not partial as the HCO3 is also low.
B. Maria's symptoms and the arterial blood gas values support this diagnosis. Metabolic acidosis is indicated by a low pH and a decreased bicarbonate (HCO3) level. The body attempts to compensate for this acidosis by hyperventilating, which is evidenced by her Kussmaul breathing, to decrease PaCO2. This compensation is partial because, despite the body's efforts, the pH is still significantly lower than normal.
C. This option can be ruled out because the pH is low (acidosis) rather than high (alkalosis), and the HCO3 is low rather than high.
D. Respiratory Acidosis, Uncompensated is ruled out because the pH is low (acidosis), but the PaCO2 is normal, indicating metabolic rather than respiratory involvement.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Ondansetron is an antiemetic commonly used to prevent nausea and vomiting, and it is not typically associated with nephrotoxicity.
B. Diphenhydramine is an antihistamine used for allergy symptoms and as a sleep aid. It is not known to cause nephrotoxicity.
C. Vancomycin is an antibiotic that can cause nephrotoxicity, especially when administered in high doses or in individuals with impaired renal function. Monitoring renal function is crucial when using vancomycin.
D. Omeprazole is a proton pump inhibitor used to reduce gastric acid secretion and treat conditions such as gastroesophageal reflux disease (GERD) and peptic ulcers. It is not associated with nephrotoxicity.
Correct Answer is ["A","B","D"]
Explanation
A. Bone pain can occur in ESRD due to mineral and bone disorders associated with chronic kidney disease.
B. Slurred speech can be seen in ESRD patients with uremic encephalopathy.
C. Hypotension is less common in ESRD; hypertension is more typical due to fluid overload and retention.
D. Pruritus is a common symptom of ESRD, often due to accumulation of uremic toxins.
E. Bradypnea is not typically associated with ESRD.
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