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A nurse is caring for a client who is hyperventilating and has the following ABG results: pH 7.50, PaCO2 29 mm Hg, and HCO3- 25 mEq/L. The nurse should recognize that the client has which of the following acid-base imbalances?
- A. Respiratory acidosis
- B. Respiratory alkalosis
- C. Metabolic acidosis
- D. Metabolic alkalosis
Correct Answer: B
Rationale: The correct answer is B: Respiratory alkalosis. In this scenario, the client is experiencing respiratory alkalosis due to hyperventilation. Hyperventilation leads to excessive loss of carbon dioxide, causing a decrease in hydrogen ion concentration and an increase in pH levels. Choices A, C, and D are incorrect. Respiratory acidosis is characterized by high PaCO2 and low pH. Metabolic acidosis is associated with low HCO3- levels and low pH. Metabolic alkalosis is marked by high HCO3- levels and high pH. In this case, the ABG results indicate respiratory alkalosis.
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A patient with chronic kidney disease may require dietary restrictions. Which of the following diets should the healthcare provider prescribe?
- A. Low sodium diet
- B. Potassium restricted diet
- C. High phosphorus diet
- D. High protein diet
Correct Answer: B
Rationale: Patients with chronic kidney disease often require a potassium-restricted diet to help manage their electrolyte levels. Excessive potassium intake can be harmful to individuals with compromised kidney function. While monitoring sodium intake is also important for these patients, a low sodium diet is not specifically indicated in the question. High phosphorus diet and high protein diet are not recommended for individuals with chronic kidney disease as they can further stress the kidneys and worsen the condition.
A client is being taught about fecal occult blood testing (FOBT) for colorectal cancer screening. Which of the following statements should the nurse include in the teaching?
- A. Your provider will use a stool sample obtained during a digital rectal examination to perform the test.
- B. Your provider will recommend a stimulant laxative before the test to empty the bowel.
- C. You should start annual fecal occult blood testing for colorectal cancer screening at the age of 40.
- D. You should avoid corticosteroids before the test.
Correct Answer: D
Rationale: The correct answer is D because the nurse should advise the client to avoid corticosteroids, anti-inflammatory medications, and vitamin C before fecal occult blood testing to prevent false-positive results. Choice A is incorrect as stool samples for FOBT are usually collected using a kit at home. Choice B is incorrect because stimulant laxatives are not typically used before FOBT. Choice C is incorrect as guidelines recommend starting colorectal cancer screening at the age of 50, not 40.
A client scheduled for electromyography (EMG) will have small needle electrodes inserted into the muscles. What should the nurse include in the teaching?
- A. You will receive a fixed dose of radioisotope 2 hours before the procedure.
- B. Momentary flushing will occur at the beginning of the procedure.
- C. You should inform your provider if you are claustrophobic.
- D. You should expect insertion of small needle electrodes into the muscles.
Correct Answer: D
Rationale: The correct answer is D. During an electromyography (EMG) procedure, small needle electrodes are inserted into the muscles to assess muscle weakness and nerve responses. Choices A, B, and C are incorrect because radioisotope is not used in EMG, flushing is not a typical occurrence, and claustrophobia is more relevant for imaging procedures like MRI or CT scans, not EMG.
A nurse in an emergency department is caring for a client who has sustained multiple injuries. The nurse observes the client's thorax moving inward during inspiration and outward during expiration. The nurse should suspect which of the following injuries?
- A. Flail chest
- B. Hemothorax
- C. Pulmonary contusion
- D. Pneumothorax
Correct Answer: A
Rationale: The correct answer is A: Flail chest. Flail chest results from multiple rib fractures, causing paradoxical chest movement where the injured part moves inward during inspiration and outward during expiration, interfering with ventilation. Choice B, Hemothorax, involves blood in the pleural cavity and does not typically cause paradoxical chest movement. Choice C, Pulmonary contusion, is a bruise to the lung tissue and does not present with paradoxical chest movement. Choice D, Pneumothorax, is the presence of air in the pleural space, leading to lung collapse, but it does not demonstrate paradoxical chest movement like in flail chest.
A client at high risk for iron deficiency anemia should increase the consumption of which of the following foods?
- A. Yogurt
- B. Apples
- C. Raisins
- D. Cheddar cheese
Correct Answer: C
Rationale: The correct answer is C: Raisins. Raisins are a good source of iron, making them beneficial for a client at high risk for iron deficiency anemia. Yogurt (Choice A), apples (Choice B), and cheddar cheese (Choice D) are not significant sources of iron. Other iron-rich foods include dried fruits, red meat, and green leafy vegetables.