A client who is experiencing respiratory distress is admitted with respiratory acidosis.
Which pathophysiological process supports the client's respiratory acidosis?
Carbon dioxide is converted in the kidneys for elimination.
Hyperventilation is eliminating carbon dioxide rapidly.
High levels of carbon dioxide have accumulated in the blood.
Blood oxygen levels are stimulating the respiratory rate.
The Correct Answer is C
Choice A rationale:
Incorrect. The kidneys do play a role in acid-base balance, but they primarily eliminate acids other than carbon dioxide. They do not significantly convert carbon dioxide for elimination.
Elaboration: While the kidneys help regulate acid-base balance through reabsorption and excretion of bicarbonate and hydrogen ions, their role in carbon dioxide elimination is minimal. They primarily excrete acids like uric acid, phosphoric acid, and lactic acid.
Choice B rationale:
Incorrect. Hyperventilation would decrease carbon dioxide levels, not contribute to respiratory acidosis. Respiratory acidosis is characterized by elevated carbon dioxide levels.
Elaboration: Hyperventilation leads to rapid and excessive breathing, causing a decrease in carbon dioxide levels in the blood. This can result in respiratory alkalosis, not respiratory acidosis.
Choice C rationale:
Correct. Respiratory acidosis is caused by the accumulation of carbon dioxide in the blood. This can happen due to impaired ventilation, such as in conditions like chronic obstructive pulmonary disease (COPD), pneumonia, or respiratory failure.
Elaboration: Carbon dioxide is produced as a byproduct of cellular metabolism. It is normally removed from the body through exhalation. When ventilation is impaired, carbon dioxide cannot be efficiently eliminated, leading to its buildup in the blood. This excess carbon dioxide reacts with water to form carbonic acid, lowering blood pH and causing respiratory acidosis.
Choice D rationale:
Incorrect. Low blood oxygen levels (hypoxemia) can stimulate the respiratory rate, but this would not directly cause respiratory acidosis. It might lead to hyperventilation, which could potentially cause respiratory alkalosis.
Elaboration: The body's respiratory center in the brainstem regulates breathing based on blood oxygen and carbon dioxide levels. Hypoxemia triggers a compensatory increase in respiratory rate to enhance oxygen intake. However, this response does not directly contribute to respiratory acidosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","E","F"]
Explanation
B. Place patient on oxygen 2 to 4 liters and maintain oxygen saturation at or above 95%.
Rationale:
Hypoxemia: Patients who have undergone cholecystectomy are at risk for developing hypoxemia due to various factors, including:
Atelectasis: Collapsed lung tissue can impair gas exchange, leading to low oxygen levels in the blood.
Pneumonia: A potential post-operative complication that can cause inflammation and fluid buildup in the lungs, hindering oxygen uptake.
Pain: Post-surgical pain can inhibit deep breathing and coughing, which are essential for maintaining adequate lung function.
Oxygen Therapy: Supplementing oxygen helps to increase oxygen saturation and improve overall tissue oxygenation, reducing the strain on the heart and other organs.
Oxygen Saturation Goal: Maintaining oxygen saturation at or above 95% ensures that the patient's tissues are receiving sufficient oxygen to meet their metabolic needs.
C. Stat 2 views chest x-ray.
Rationale:
Chest X-ray: A valuable diagnostic tool that can visualize the lungs and surrounding structures, aiding in the assessment of: Atelectasis: Appears as areas of increased density on the x-ray, indicating collapsed lung tissue.
Pneumonia: May present as consolidation (solid white areas) or infiltrates (patchy areas of increased density) on the x-ray. Pleural effusion: Fluid accumulation in the pleural space, which can impair lung expansion and gas exchange.
Pneumothorax: Presence of air in the pleural space, which can cause lung collapse and respiratory distress.
Early Detection: Prompt identification of respiratory complications through chest x-ray allows for timely interventions and prevents further deterioration of the patient's condition.
E. Complete blood count (CBC), basic metabolic panel (BMP), and blood cultures.
Rationale:
CBC: Assesses for signs of infection or inflammation, including:
Elevated white blood cell count (leukocytosis) Increased neutrophils (neutrophilia)
Anemia (low red blood cell count)
BMP: Evaluates electrolyte and kidney function, which can be affected by infections and post-operative complications.
Blood Cultures: Determines the presence of bacteria in the bloodstream, allowing for identification of the causative organism and guiding appropriate antibiotic therapy.
F. Start the patient on antibiotic therapy.
Rationale:
Infection Risk: The patient's history of cholangitis and recent surgery increase the risk of infection. Prophylactic Antibiotics: Often administered after cholecystectomy to prevent post-operative infections.
Early Intervention: Prompt initiation of antibiotic therapy is crucial in managing infections and preventing serious complications such as sepsis.
Correct Answer is ["B","E","G"]
Explanation
B. Position the patient with the head of the bed elevated. Rationale:
Promotes lung expansion: Elevating the head of the bed by at least 30 degrees utilizes gravity to assist in diaphragmatic descent and lung expansion. This allows for greater intake of air, optimizing oxygen intake and facilitating better gas exchange.
Reduces work of breathing: When upright, the abdominal muscles can more effectively aid in breathing, reducing the workload on the diaphragm and accessory muscles. This conserves energy and decreases the patient's respiratory effort.
Enhances secretion drainage: Gravity also aids in the movement of secretions from the lower lobes of the lungs towards the upper airways, where they can be more easily coughed up or suctioned. This helps to clear the airways and improve ventilation.
E. Teach the patient to cough at least once an hour. Rationale:
Clears secretions: Coughing is a natural mechanism to clear secretions from the lungs and airways. It helps to prevent mucus buildup and potential obstruction, which can lead to atelectasis (collapse of lung tissue) and further compromise ventilation.
Improves gas exchange: By removing secretions, coughing allows for better airflow and gas exchange within the lungs. This enhances oxygenation and helps to prevent respiratory complications.
G. Assist the patient in ambulating safely. Rationale:
Mobilizes secretions: Ambulation encourages movement of secretions from the lower lobes of the lungs, promoting their clearance and preventing mucus buildup.
Prevents atelectasis: Walking and movement help to expand the lungs, reducing the risk of atelectasis and improving overall ventilation.
Enhances circulation: Ambulation also improves circulation, which can help to deliver oxygen to the tissues more effectively and aid in healing.
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.