A nurse is caring for a patient who is experiencing nausea and vomiting.
The nurse should identify that the patient is at risk for which of the following acid-base imbalances?
Metabolic alkalosis
Respiratory acidosis
Metabolic acidosis
Respiratory alkalosis
The Correct Answer is A
Choice A rationale:
Metabolic alkalosis can occur in clients who have excessive vomiting because of the loss of hydrochloric acid. When a person vomits, they lose hydrochloric acid, and the loss of this acid can cause the blood to become more basic. This shift in pH can lead to metabolic alkalosis, a condition characterized by high levels of bicarbonate in the blood, which makes it more alkaline (or less acidic). Symptoms of metabolic alkalosis can include muscle twitching, hand tremor, nausea or vomiting, and tingling in the face, hands or feet. In severe cases, it can cause prolonged muscle contractions or seizures.
Choice B rationale:
Respiratory acidosis is a condition that occurs when the lungs can’t remove enough carbon dioxide (CO2) from the body, which causes the body’s fluids, especially the blood, to become too acidic. This can occur due to conditions that affect the lungs such as chronic obstructive pulmonary disease (COPD), asthma, or sleep apnea. However, in the case of a patient experiencing nausea and vomiting, respiratory acidosis is less likely to be the primary concern.
Choice C rationale:
Metabolic acidosis occurs when the body produces too much acid, or when the kidneys aren’t removing enough acid from the body. This can be caused by conditions such as kidney disease, lactic acidosis, or ketoacidosis. In the case of a patient experiencing nausea and vomiting, the primary concern would not typically be metabolic acidosis, as vomiting leads to a loss of stomach acid, which would more likely result in a state of alkalosis, not acidosis.
Choice D rationale:
Respiratory alkalosis is a condition that occurs when you breathe too fast or too deep and carbon dioxide levels drop too low. This causes the pH of the blood to rise and become too alkaline. When the blood is too alkaline, it means that it is not carrying enough carbon dioxide. This condition can be caused by fever, hyperventilation, or lack of oxygen. In the case of a patient experiencing nausea and vomiting, respiratory alkalosis is not typically the primary concern.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Wheezing is a common symptom of an allergic transfusion reaction. An allergic transfusion reaction occurs when the recipient’s immune system reacts to foreign proteins or allergens in the donor’s blood. Symptoms of an allergic reaction can range from mild to severe, and they typically include skin reactions such as hives and itching, as well as respiratory symptoms like wheezing. In severe cases, the reaction can cause difficulty breathing.
Choice B rationale:
Flank pain is not typically associated with an allergic transfusion reaction. It is more commonly a symptom of conditions affecting the kidneys or urinary tract. While flank pain can occur in a hemolytic transfusion reaction due to the rapid destruction of red blood cells, it is not a symptom of an allergic reaction.
Choice C rationale:
Elevated blood pressure is not a typical symptom of an allergic transfusion reaction. Allergic reactions more commonly cause symptoms such as hives, itching, and respiratory symptoms like wheezing. In severe cases, an allergic reaction can actually lead to a drop in blood pressure.
Choice D rationale:
Distended neck veins are not a typical symptom of an allergic transfusion reaction. They are more commonly associated with conditions that cause increased pressure in the right side of the heart. While distended neck veins can occur in a transfusion reaction due to fluid overload, they are not a symptom of an allergic reaction.
Correct Answer is C
Explanation
Choice A rationale:
Hypertension is not typically a sign of hypokalemia. Hypokalemia, or low potassium levels, can cause symptoms like fatigue, muscle weakness, digestive problems, and frequent urination. Hypertension, or high blood pressure, is not commonly associated with hypokalemia.
Choice B rationale:
Cerebral edema, or swelling in the brain, is not a common symptom of hypokalemia. Hypokalemia is more likely to cause symptoms related to muscle function and digestion, as potassium is an essential mineral that helps regulate muscle contractions, maintain healthy nerve function, and regulate fluid balance.
Choice C rationale:
Muscle weakness is a common symptom of hypokalemia. Potassium helps regulate muscle contractions. When blood potassium levels are low, your muscles produce weaker contractions. This can result in symptoms like muscle weakness and fatigue.
Choice D rationale:
Hyperactive bowel sounds are not typically associated with hypokalemia. Hypokalemia can cause digestive problems, but these are more likely to be issues like constipation rather than increased bowel sounds.
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