The nurse is caring for a client with respiratory alkalosis. Which arterial blood gas data does the nurse anticipate finding?
pH-7.10. CO2-78. HCO3-25
pH-7.55. C02-20. HCO3-24
pH-7.25, CO2-64, HCO3-22
Ph-7.0. CO2-72. HCO3-26
The Correct Answer is B
Respiratory alkalosis is a condition in which the blood pH is elevated due to a decrease in the partial pressure of carbon dioxide (CO2) in the blood. This can occur when a person breathes too rapidly or deeply (hyperventilation), causing them to exhale too much CO2. In this option, the pH is elevated (normal range is 7.35-7.45), the CO2 is low (normal range is 35-45 mmHg), and the bicarbonate (HCO3) level is within the normal range (22-26 mEq/L), which are all consistent with respiratory alkalosis.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Atrial fibrillation is a common arrhythmia, and diuretics are often used in the management of patients with this condition to help control fluid balance. However, diuretics can cause electrolyte imbalances, especially hypokalaemia (low potassium levels), which can lead to muscle cramps and other complications.
A Complete Metabolic Panel (CMP) is a blood test that measures various electrolytes, glucose, and other important components. Among the options given, the most likely lab value to be abnormal in Patient MK's case is a low level of potassium (K+), which is consistent with her symptoms and diuretic use. Option d, K+ -
-
- mEq/L, is the correct option as it represents a low level of potassium, which is defined as a value less than 3.5 mEq/L.
Option a, Mg2 – 20 mEq/L, represents high magnesium levels, which are not typically associated with diuretic use or muscle cramps. Option b, Na+ - 123 mEq/L, represents low sodium levels, which are less likely to occur with diuretic use, and are typically associated with other conditions. Option c, Ca2 – 10.0 mg/dl, represents normal calcium levels and is not typically affected by diuretic use.
Correct Answer is C
Explanation
Dehydration can cause a decrease in blood volume, leading to a drop in blood pressure (hypotension) and an increase in heart rate (tachycardia) as the body tries to compensate. Tenting skin and dry mucous membranes are also signs of dehydration, but wet mucous membranes are not. Crackles in the lungs, edema, and confusion can occur with fluid overload, but not with dehydration.

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