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 D
Explanation
Choice A rationale:
Dry skin is not typically associated with respiratory alkalosis. Respiratory alkalosis occurs when the levels of carbon dioxide and oxygen in the blood aren’t balanced, often due to hyperventilation. Dry skin is not listed as a common symptom of this condition.
Choice B rationale:
Diarrhea is not a common symptom of respiratory alkalosis. The condition is characterized by symptoms such as dizziness, numbness, confusion, and shortness of breath. Diarrhea is more commonly associated with gastrointestinal issues rather than respiratory conditions.
Choice C rationale:
Abdominal pain is not a typical symptom of respiratory alkalosis. The condition is usually caused by over-breathing
(hyperventilation) that occurs when you breathe very deeply or rapidly. Abdominal pain is not listed as a common symptom of this condition.
Choice D rationale:
Hyperventilation is typically the underlying cause of respiratory alkalosis. Hyperventilation, also known as overbreathing, occurs when someone breathes very deeply or rapidly. This can cause the levels of carbon dioxide in the blood to drop too low, leading to respiratory alkalosis. Therefore, a nurse assessing a client who has respiratory alkalosis should expect to find signs of hyperventilation.
Correct Answer is B
Explanation
Choice A rationale:
Collecting urine from the catheter’s port is not the correct procedure when collecting a urine specimen for culture and sensitivity through straight catheterization. The port is not a sterile environment and could contaminate the specimen, leading to inaccurate results.
Choice B rationale:
Using a sterile specimen container is the correct procedure. This ensures that the specimen is not contaminated by any external bacteria or substances, which could affect the results of the culture and sensitivity test. The container must be sterile to prevent the growth of microbes that are not present in the urine sample. This helps to ensure that the results of the culture are accurate and reflect the microbes present in the urine, not those introduced during collection.
Choice C rationale:
Inflating the balloon with sterile water is not a step in this procedure. The balloon is part of an indwelling catheter, not a straight catheter. An indwelling catheter remains in the bladder for a longer period, and the balloon is inflated to keep it in place. A straight catheter is used for a single voiding or to obtain a sterile urine specimen.
Choice D rationale:
Instructing the patient to clean from front to back with an antiseptic solution is not a step in this procedure. While maintaining cleanliness is important, this specific instruction is more relevant to a clean-catch midstream urine specimen, not a specimen collected through straight catheterization.
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