Nokea
The nurse formulates a nursing diagnosis of 'High risk for ineffective airway clearance' for a client with myasthenia gravis. What is the most likely etiology for this nursing diagnosis?
- A. Pain when coughing.
- B. Diminished cough effort.
- C. Thick, dry secretions.
- D. Excessive inflammation.
Correct Answer: B
Rationale: The correct answer is B: Diminished cough effort. In myasthenia gravis, muscle weakness can affect the respiratory muscles, leading to ineffective coughing and clearance of airways. Diminished cough effort can result in ineffective airway clearance, putting the client at high risk for respiratory complications.
A: Pain when coughing is not the primary etiology for ineffective airway clearance in myasthenia gravis.
C: Thick, dry secretions may contribute to airway clearance issues but are not the most likely etiology compared to diminished cough effort.
D: Excessive inflammation is not typically associated with ineffective airway clearance in myasthenia gravis.
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A patient with atrial fibrillation is prescribed warfarin. Which laboratory test should the nurse monitor to assess the effectiveness of the medication?
- A. Complete blood count (CBC)
- B. Prothrombin time (PT)/INR
- C. Partial thromboplastin time (PTT)
- D. Serum potassium level
Correct Answer: B
Rationale: The correct answer is B: Prothrombin time (PT)/INR. This is because warfarin is a medication that affects the clotting ability of the blood by inhibiting vitamin K-dependent clotting factors. PT/INR is the specific laboratory test used to monitor the effectiveness of warfarin therapy. PT measures how long it takes for blood to clot, while INR standardizes the PT results. Monitoring PT/INR helps to ensure that the patient is within the target therapeutic range for anticoagulation.
Incorrect choices:
A: Complete blood count (CBC) - CBC does not directly assess the effectiveness of warfarin therapy.
C: Partial thromboplastin time (PTT) - PTT is used to monitor the effectiveness of heparin therapy, not warfarin.
D: Serum potassium level - Monitoring serum potassium level is not directly related to assessing the effectiveness of warfarin therapy.
What should the nurse include in patient teaching for a patient prescribed ceftriaxone for bacterial pneumonia?
- A. Take the medication as prescribed.
- B. Expect urine color changes.
- C. Complete the full course of the antibiotic.
- D. Avoid dairy products during treatment.
Correct Answer: C
Rationale: Rationale:
Ceftriaxone is an antibiotic used for bacterial pneumonia. Completing the full course is essential to completely eradicate the infection and prevent antibiotic resistance. Taking medication as prescribed is a general principle, but not specific to this medication. Urine color changes are not associated with ceftriaxone. Dairy products do not interact with ceftriaxone.
A patient with rheumatoid arthritis is taking prednisone. What is an important side effect for the nurse to monitor?
- A. Hyperglycemia
- B. Bradycardia
- C. Hypotension
- D. Hyperkalemia
Correct Answer: A
Rationale: The correct answer is A: Hyperglycemia. Prednisone is a corticosteroid that can cause an increase in blood glucose levels by promoting gluconeogenesis and decreasing insulin sensitivity. Monitoring for hyperglycemia is crucial as it can lead to serious complications such as diabetic ketoacidosis. Bradycardia (B) and hypotension (C) are not typical side effects of prednisone, as it tends to cause fluid retention and hypertension. Hyperkalemia (D) is also unlikely as prednisone can actually cause hypokalemia due to increased renal potassium excretion.
A patient with chronic heart failure is prescribed furosemide. What is the primary action of this medication?
- A. Increase cardiac output
- B. Reduce fluid retention
- C. Decrease heart rate
- D. Lower blood pressure
Correct Answer: B
Rationale: The correct answer is B: Reduce fluid retention. Furosemide is a loop diuretic that works by increasing urine production, leading to the removal of excess fluid and sodium from the body. This helps reduce fluid volume overload in conditions like heart failure. Choice A is incorrect because while reducing fluid retention may indirectly improve cardiac output by reducing preload, furosemide itself does not directly increase cardiac output. Choice C is incorrect as furosemide does not have a direct effect on heart rate. Choice D is incorrect because while furosemide may lower blood pressure as a result of reducing fluid volume, its primary action is to reduce fluid retention, not specifically lower blood pressure.
A patient with chronic obstructive pulmonary disease (COPD) is prescribed tiotropium. What is the primary purpose of this medication?
- A. Reduce mucus production
- B. Relieve bronchospasm
- C. Suppress cough
- D. Thin respiratory secretions
Correct Answer: B
Rationale: The correct answer is B: Relieve bronchospasm. Tiotropium is an anticholinergic medication that acts by relaxing the muscles around the airways, thereby helping to relieve bronchospasm in patients with COPD. This results in improved airflow and reduced shortness of breath.
A: Reduce mucus production - This is incorrect as tiotropium does not directly affect mucus production but rather focuses on bronchospasm relief.
C: Suppress cough - Tiotropium may help with cough associated with COPD by improving airflow, but its primary purpose is not to suppress cough.
D: Thin respiratory secretions - Tiotropium does not have a direct effect on thinning respiratory secretions; its main action is bronchodilation to relieve bronchospasm in COPD.