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 D
Explanation
Rationale for Choice A:
Arranging for a bedside commode can be helpful for patients who have difficulty ambulating to the bathroom. However, it is not the most effective intervention for preventing falls in an ambulatory and independent patient. In fact, it could potentially increase the risk of falls if the patient attempts to use the commode without assistance or if they become disoriented in the dark.
Research has shown that bedside commodes are associated with an increased risk of falls in hospitalized patients. This is because patients may try to get out of bed to use the commode without assistance, or they may become disoriented in the dark and fall.
Additionally, bedside commodes can be a tripping hazard, especially for patients with impaired mobility.
Rationale for Choice B:
Ensuring the bathroom light is kept on during the night can help to reduce the risk of falls by making it easier for the patient to see. However, it is not the most effective intervention for preventing falls.
Patients may still fall even if the bathroom light is on, especially if they are weak, unsteady, or have impaired vision. Additionally, keeping the bathroom light on all night can disrupt the patient's sleep, which can also increase the risk of falls.
Rationale for Choice C:
Using side rails to keep the patient in bed is not an effective intervention for preventing falls. In fact, it can actually increase the risk of falls by making it more difficult for the patient to get out of bed safely.
Patients may try to climb over the side rails, which can lead to falls.
Additionally, side rails can restrict the patient's movement and make them feel trapped, which can lead to agitation and an increased risk of falls.
Rationale for Choice D:
Implementing a toileting schedule is the most effective intervention for preventing falls in an ambulatory and independent patient. This is because it helps to reduce the patient's need to get out of bed at night to use the bathroom.
When a patient has a scheduled time to toilet, they are less likely to try to get out of bed on their own and risk a fall. Additionally, a toileting schedule can help to prevent incontinence, which can also lead to falls.
Correct Answer is ["A","B","D","E"]
Explanation
Choice A rationale:
Elevate the head of the bed to 35-45 degrees unless contraindicated:
Promotes venous return: Elevating the head of the bed reduces venous pooling in the lower extremities and promotes venous return to the heart. This helps to improve cardiac output and reduce the risk of fluid overload.
Reduces aspiration risk: Elevating the head of the bed also helps to prevent aspiration, as it keeps the head and neck in a more upright position. This allows for better drainage of secretions and reduces the chance of them entering the lungs.
Contraindications: There are a few contraindications to elevating the head of the bed, such as severe hypotension, head injury, or spinal injury. In these cases, the potential benefits of elevation must be weighed against the risks.
Choice B rationale:
Assess Vital Signs:
Baseline assessment: It's crucial to obtain baseline vital signs before administering any IV fluid to have a reference point for comparison. This allows for early detection of any changes that may indicate fluid overload or other complications.
Monitoring fluid status: Vital signs, including blood pressure, heart rate, respiratory rate, and temperature, provide important information about the patient's fluid status and hemodynamic stability. Changes in vital signs can signal fluid overload, dehydration, or other problems that may require intervention.
Detecting adverse reactions: Vital signs can also help to detect adverse reactions to the IV fluid, such as allergic reactions or anaphylaxis. Early identification of these reactions is essential for prompt treatment.
Choice D rationale:
Assess lung and heart sounds:
Baseline assessment: Assessing lung and heart sounds before IV fluid administration provides a baseline for comparison and helps to identify any preexisting conditions that may affect fluid tolerance.
Detecting fluid overload: Crackles in the lungs, increased heart rate, and extra heart sounds can indicate fluid overload, which can lead to pulmonary edema and heart failure.
Monitoring response to therapy: Lung and heart sounds can also be used to monitor the patient's response to IV fluid therapy. Improvement in lung sounds and heart rate can indicate a positive response to treatment.
Choice E rationale:
Obtain baseline weight:
Accurate fluid balance: Obtaining a baseline weight is essential for accurate assessment of fluid balance. It allows for tracking of fluid gains and losses and helps to prevent fluid overload or dehydration.
Monitoring fluid status: Changes in weight can reflect changes in fluid status. Weight gain can indicate fluid retention, while weight loss can suggest dehydration.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.