Which arterial blood gas (ABG) data corresponds with a patient's clinical manifestations of respiratory alkalosis?

pH = 7.46, PaCO2 = 44 mm Hg, PaO2 = 95 mm Hg, and HCO3 = 36 mEq/L.

pH = 7.27, PaCO2 = 70 mm Hg, PaO2 = 80 mm Hg, and HCO3 = 26 mEq/L.

pH = 7.30, PaCO2 = 35 mm Hg, PaO2 = 70 mm Hg, and HCO3 = 20 mEq/L.

pH = 7.52, PaCO2 = 24 mm Hg, PaO2 = 85 mm Hg, and HCO3 = 24 mEq/L.

Answer and Explanation

The Correct Answer is D

The correct answer is Choice D. Then start with Choice A rationale:

Choice A is incorrect because it represents metabolic alkalosis, not respiratory alkalosis. Metabolic alkalosis occurs when there is a primary increase in the bicarbonate (HCO3) level, which causes the pH to rise above the normal range (7.35-7.45). The PaCO2 is normal in this case, indicating that the respiratory system is not involved in the acid-base imbalance. Some causes of metabolic alkalosis include vomiting, diuretic use, excessive antacid intake, and mineralocorticoid excess 1.

Choice B is incorrect because it represents respiratory acidosis, not respiratory alkalosis. Respiratory acidosis occurs when there is a primary decrease in the PaCO2 level, which causes the pH to fall below the normal range. The HCO3 is normal in this case, indicating that the metabolic system is not involved in the acid-base imbalance. Some causes of respiratory acidosis include hypoventilation, airway obstruction, chest trauma, neuromuscular disorders, and chronic lung diseases 2.

Choice C is incorrect because it represents metabolic acidosis, not respiratory alkalosis. Metabolic acidosis occurs when there is a primary decrease in the HCO3 level, which causes the pH to fall below the normal range. The PaCO2 is normal in this case, indicating that the respiratory system is not involved in the acid-base imbalance. Some causes of metabolic acidosis include diabetic ketoacidosis, lactic acidosis, renal failure, diarrhea, and poisoning 3.

Choice D is correct because it represents respiratory alkalosis. Respiratory alkalosis occurs when there is a primary decrease in the PaCO2 level, which causes the pH to rise above the normal range. The HCO3 is normal in this case, indicating that the metabolic system is not involved in the acid-base imbalance. Some causes of respiratory alkalosis include hyperventilation, anxiety, panic, fever, pain, tumor, trauma, severe anemia, liver disease, overdose of certain medicines, pulmonary embolism, pregnancy, and any lung disease that leads to shortness of breath . Respiratory alkalosis is characterized by symptoms such as breathlessness, dizziness, numbness, tingling, muscle spasms, chest discomfort, confusion, and fainting.

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Correct Answer is ["C","B"]

Explanation

Choice A rationale:

Anemia is not a direct manifestation of target organ damage from hypertension.

Choice B rationale:

Aneurysm is a correct answer. Persistent high blood pressure can weaken the walls of arteries, making them more susceptible to forming an aneurysm. Aneurysms can occur in various arteries, such as the aorta, and can lead to life-threatening complications if they rupture.

Choice C rationale:

Proteinuria is also a correct answer. Hypertension can damage the kidneys, leading to proteinuria, the presence of excess proteins in the urine. This is an indication of kidney damage and is a common manifestation of hypertensive target organ disease.

Choice D rationale:

Pneumonia and Transient Ischemic Attack (TIA) are not direct manifestations of target organ damage from hypertension.

A. Hypotonic saltwater. B. Hypertonic saltwater. C. Hypotonic freshwater. D. Hypertonic freshwater.

Correct Answer is B

Explanation

The correct answer is B. Hypertonic saltwater.

Choice A rationale: Hypotonic saltwater would not cause significant fluid shifts into the alveoli. Instead, it would cause cells to swell due to the lower concentration of solutes outside the cells.

Choice B rationale: Hypertonic saltwater causes fluid to be drawn from the vascular space into the alveoli due to the higher concentration of solutes in the water compared to the body's cells. This can impair alveolar ventilation and result in hypoxia.

Choice C rationale: Hypotonic freshwater would cause cells to swell and potentially burst due to the lower concentration of solutes outside the cells, but it would not specifically cause fluid to be drawn into the alveoli.

Choice D rationale: Hypertonic freshwater is not a common classification for drowning water. Freshwater is typically hypotonic compared to body fluids, and it would not cause the same fluid shift as hypertonic saltwater.

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Which arterial blood gas (ABG) data corresponds with a patient's clinical manifestations of respiratory alkalosis?

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Naxlex Comprehensive Predictor Exams

Which manifestation is related to target organ disease from hypertension? Select all that apply.One, some, or all responses may be correct.

Correct Answer is ["C","B"]

Explanation

In which type of water would a submersion injury cause the patient's fluid to be drawn from the vascular space into the alveoli, impairing alveolar ventilation and resulting in hypoxia?

Correct Answer is B

Explanation

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