A nurse is providing care for a patient suffering from severe diarrhea. Which acid-base disorder is the patient at risk of developing?
Metabolic Alkalosis
Respiratory Alkalosis
Respiratory Acidosis
Metabolic Acidosis
The Correct Answer is D
Choice A rationale:
Metabolic alkalosis is a condition characterized by an increase in the pH of the blood due to an excess of bicarbonate (HCO3-) in the body. It is not typically caused by severe diarrhea. In fact, diarrhea can often lead to a loss of bicarbonate, which can contribute to metabolic acidosis.
Causes of metabolic alkalosis include: excessive vomiting, use of diuretics, and excessive intake of alkali such as antacids. Clinical manifestations of metabolic alkalosis include: muscle twitching, paresthesias, seizures, confusion, and lethargy.
Choice B rationale:
Respiratory alkalosis is a condition characterized by a decrease in the partial pressure of carbon dioxide (PaCO2) in the blood, leading to an increase in blood pH. It is caused by hyperventilation, which removes excess CO2 from the body. Severe diarrhea does not typically cause hyperventilation.
Causes of respiratory alkalosis include: anxiety, hyperventilation syndrome, high altitude sickness, and pulmonary embolism. Clinical manifestations of respiratory alkalosis include: lightheadedness, dizziness, paresthesias, palpitations, and tetany.
Choice C rationale:
Respiratory acidosis is a condition characterized by an increase in the partial pressure of carbon dioxide (PaCO2) in the blood, leading to a decrease in blood pH. It is caused by hypoventilation, which prevents the body from removing enough CO2. Severe diarrhea does not typically cause hypoventilation.
Causes of respiratory acidosis include: chronic obstructive pulmonary disease (COPD), pneumonia, asthma, and neuromuscular disorders.
Clinical manifestations of respiratory acidosis include: headache, confusion, somnolence, and coma.
Choice D rationale:
Metabolic acidosis is a condition characterized by a decrease in the pH of the blood due to an excess of acid in the body or a loss of bicarbonate. Severe diarrhea can lead to metabolic acidosis through several mechanisms:
Loss of bicarbonate in the stool: Diarrhea often contains a significant amount of bicarbonate, which can be lost from the body in large amounts during severe diarrheal episodes. This loss of bicarbonate can lead to a decrease in the blood's pH, resulting in metabolic acidosis.
Dehydration: Severe diarrhea can also lead to dehydration, which can concentrate acids in the blood and contribute to metabolic acidosis.
Lactic acidosis: In some cases, severe diarrhea can also cause lactic acidosis, a type of metabolic acidosis that occurs when there is a buildup of lactic acid in the body. This can happen due to impaired circulation or tissue hypoxia, which can occur as a complication of severe diarrhea.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Anaphylaxis risk: A history of allergy to bee and wasp stings indicates a potential risk for anaphylaxis, a severe and life- threatening allergic reaction. This information is crucial for the surgical team to be aware of, as it can influence their choice of anesthesia, medications, and other interventions during the surgery. They will need to be prepared to manage any potential allergic reactions promptly and effectively.
Cross-reactivity potential: Allergies to insect stings can sometimes cross-react with other substances, such as medications used during surgery (e.g., antibiotics, muscle relaxants, latex). It's essential for the surgical team to be aware of these potential cross-reactions to take necessary precautions and avoid triggering an allergic reaction.
Preoperative planning: Knowing about the patient's allergy to bee and wasp stings allows the surgical team to make informed decisions regarding:
Premedication: The patient may need to receive antihistamines or corticosteroids before surgery to reduce the risk of an allergic reaction.
Monitoring: The patient's vital signs and symptoms will be closely monitored during and after surgery for any signs of an allergic reaction.
Emergency preparedness: The surgical team will have medications and equipment readily available to treat anaphylaxis if it occurs.
Choice B rationale:
Lactose intolerance is not typically a significant concern during surgery. It's a digestive issue that can cause discomfort after consuming dairy products, but it doesn't typically pose immediate risks during surgical procedures. The surgical team may adjust the patient's diet after surgery to accommodate lactose intolerance, but it's not crucial information for the immediate surgical planning.
Choice C rationale:
Herb and supplement use is important to communicate to the surgical team. Some herbs and supplements can interact with medications used during surgery, increasing the risk of bleeding, heart problems, or other complications. However, it's not as immediately critical as an allergy to bee and wasp stings, which carries a risk of life-threatening anaphylaxis.
Choice D rationale:
While a patient's previous experience with surgery can be helpful for the surgical team to understand their anxiety levels and expectations, it's not as critical as information about allergies or potential medication interactions.
Correct Answer is D
Explanation
Choice A rationale:
Utilizing a respirator when handling urine output is not the most appropriate action for a nurse caring for a patient with MRSA.
MRSA is not typically transmitted through the air, but rather through direct contact with infected wounds or contaminated surfaces.
While a respirator may offer some protection against airborne particles, it is not necessary for routine care of a patient with MRSA.
It is more important to focus on hand hygiene and other infection control measures.
Choice B rationale:
Restricting visitors strictly to immediate family members only is not necessary for a patient with MRSA.
While it is important to limit the number of visitors to reduce the risk of spreading infection, there is no need to restrict visitors to immediate family members only.
Visitors should be instructed on proper hand hygiene and other infection control measures, and they should avoid contact with the patient's wounds or dressings.
Choice C rationale:
Washing hands only after removing gloves post-care is not sufficient for preventing the spread of MRSA. It is important to wash hands before and after any contact with the patient, even when wearing gloves.
This is because gloves can become contaminated with bacteria, and hand washing helps to remove any bacteria that may have gotten on the hands.
Choice D rationale:
Preparing to administer vancomycin is the most appropriate action for a nurse caring for a patient with MRSA. Vancomycin is an antibiotic that is effective against MRSA.
It is often used to treat MRSA infections, and it can help to prevent the infection from spreading.
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