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:
It is crucial to prioritize the patient's spouse's emotional needs and preferences during this highly stressful and sensitive situation. Offering the choice to be present during resuscitation demonstrates respect for their autonomy, promotes family- centered care, and facilitates coping mechanisms.
Key considerations supporting this approach:
Respect for Autonomy:
Patients and their loved ones have the right to make informed decisions about their care, including being present during resuscitation efforts.
Respecting this right fosters trust, empowers the spouse, and aligns with ethical principles of patient autonomy. Family-Centered Care:
Family-centered care recognizes the importance of family members in the patient's care and decision-making.
Inviting the spouse to be present demonstrates a commitment to including them in the care process and supporting their emotional needs.
Facilitating Coping Mechanisms:
Witnessing resuscitation efforts can be distressing, but it can also provide closure, acceptance, and the opportunity to say goodbye.
Some individuals find comfort in being present and actively involved, even in difficult circumstances. The nurse can provide emotional support and guidance throughout the process.
Potential Benefits of Presence:
Studies have shown that family presence during resuscitation can have positive outcomes, such as decreased anxiety and post- traumatic stress disorder (PTSD) symptoms in family members.
It may also contribute to greater satisfaction with care and a sense of peace for those who choose to be present.
Rationales for other choices:
Choice B: Requesting that the spouse sit in the waiting room may isolate them and increase their anxiety. It deprives them of the opportunity to be involved in decision-making and potentially delays their grieving process.
Choice C: While the hospital's crisis team can provide valuable support, immediate referral may not align with the spouse's immediate needs or preferences. It's essential to first assess their emotional state and offer the choice of being present.
Choice D: Suggesting prayer may be appropriate for some individuals, but it should not be the first or only option presented. It's important to respect the spouse's spiritual beliefs and offer a range of support options.
Correct Answer is A
Explanation
Choice A rationale:
Prednisone is a corticosteroid that suppresses the body's natural production of cortisol. Cortisol is a hormone that is essential for life, and it plays a role in many important bodily functions, including:
Regulating blood sugar levels Maintaining blood pressure Reducing inflammation Responding to stress
When a person takes prednisone for a long period of time, their body begins to rely on the medication to provide cortisol. If the medication is stopped suddenly, the body cannot produce enough cortisol on its own, which can lead to a life-threatening condition called adrenal insufficiency.
Adrenal insufficiency can cause a variety of symptoms, including: Extreme fatigue
Weakness Dizziness Nausea Vomiting Abdominal pain Confusion
Loss of consciousness
To prevent adrenal insufficiency, it is important to taper off prednisone slowly over a period of time. This allows the body to gradually adjust to producing cortisol on its own.
Here are some additional details about why prednisone should never be discontinued abruptly: The risk of adrenal insufficiency is highest when prednisone has been taken for more than 3 weeks. The longer a person has been taking prednisone, the slower the taper should be.
It is important to follow the tapering instructions provided by the healthcare provider.
If a person experiences any symptoms of adrenal insufficiency, they should seek medical attention immediately.
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