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The nurse is caring for a patient who has been scheduled for a bronchoscopy. How should the nurse prepare the patient for this procedure?
- A. Administer a bolus of IV fluids.
- B. Arrange for the insertion of a peripherally inserted central catheter.
- C. Administer nebulized bronchodilators every 2 hours until the test.
- D. Withhold food and fluids for several hours before the test.
Correct Answer: D
Rationale: The correct answer is D because withholding food and fluids for several hours before a bronchoscopy is important to prevent aspiration during the procedure. When the patient is sedated for the bronchoscopy, there is an increased risk of vomiting, and having an empty stomach reduces this risk. Administering IV fluids (choice A) is not necessary unless clinically indicated. Inserting a peripherally inserted central catheter (choice B) is not typically required for a bronchoscopy. Administering nebulized bronchodilators (choice C) may not be needed for all patients and should be based on the individual's respiratory condition.
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When teaching a patient with heart failure on a 2000-mg sodium diet. Which foods should the nurse recommend limiting?
- A. Chicken
- B. Fresh spinach
- C. Eggs
- D. Milk
Correct Answer: D
Rationale: The correct answer is D: Milk. Milk is a high sodium food and can contribute significantly to a patient's daily sodium intake. For a patient on a 2000-mg sodium diet, it is crucial to limit high sodium foods like milk to prevent fluid retention and worsening of heart failure symptoms. Other choices (A, B, C) are lower in sodium compared to milk. Chicken, fresh spinach, and eggs are generally good protein sources with lower sodium content and can be included in moderation in a 2000-mg sodium diet for a heart failure patient.
In mammals ventilation movements of lungs are governed by
- A. Muscular wall of lungs
- B. Inter costal muscles
- C. Diaphragm
- D. Diaphragm and inter coastal muscles
Correct Answer: D
Rationale: The correct answer is D: Diaphragm and intercostal muscles. The diaphragm is the primary muscle responsible for inhalation and exhalation by contracting and relaxing, respectively. Intercostal muscles aid in expanding and contracting the rib cage to assist in breathing. The combination of the diaphragm and intercostal muscles working together ensures efficient ventilation of the lungs in mammals. Choices A and B are incorrect because the muscular wall of the lungs and intercostal muscles alone are not solely responsible for regulating ventilation. Choice C is incorrect because the diaphragm alone does not govern ventilation movements without the assistance of the intercostal muscles. Therefore, the correct answer is D as it accurately reflects the coordinated effort of both the diaphragm and intercostal muscles in regulating lung ventilation.
Chronic Obstructive Pulmonary Disease (COPD) includes
- A. Emphysema
- B. Bronchitis
- C. Asthma
- D. All these
Correct Answer: D
Rationale: The correct answer is D because Chronic Obstructive Pulmonary Disease (COPD) is an umbrella term that encompasses both emphysema and bronchitis. Emphysema is characterized by damage to the air sacs in the lungs, while bronchitis involves inflammation of the bronchial tubes. Asthma, on the other hand, is a separate condition characterized by reversible airway obstruction. Therefore, choices A, B, and C are incorrect, as only emphysema and bronchitis fall under the category of COPD.
Which of these does not affect diffusion rate?
- A. Surface area for diffusion
- B. Concentration gradient
- C. Solubility of gas
- D. Molecular weight of gas
Correct Answer: D
Rationale: The correct answer is D: Molecular weight of gas. Diffusion rate is inversely proportional to the square root of the molecular weight of the gas. This means that as the molecular weight increases, the diffusion rate decreases. This is because heavier molecules move more slowly and have a harder time diffusing through a medium. Surface area for diffusion, concentration gradient, and solubility of gas all directly affect diffusion rate. Increasing the surface area for diffusion allows for more space for molecules to diffuse, a steeper concentration gradient increases the rate of diffusion, and higher solubility of gas in a medium enhances the diffusion rate.
A charge nurse is rounding on several older clients on ventilators in the Intensive Care Unit whom the nurse identifies as being at high risk for ventilator-associated pneumonia. To reduce this risk what activity would the nurse delegate to the assistive personnel (AP)?
- A. Encourage between-meal snacks.
- B. Monitor temperature every 4 hours.
- C. Provide oral care every 4 hours.
- D. Report any new onset of cough.
Correct Answer: C
Rationale: The correct answer is C: Provide oral care every 4 hours. Oral care helps prevent ventilator-associated pneumonia by reducing the risk of oral bacteria being aspirated into the lungs. The AP can assist with oral care under the nurse's supervision.
A: Encouraging between-meal snacks does not directly address pneumonia risk.
B: Monitoring temperature is important but not specific to ventilator-associated pneumonia prevention.
D: Reporting new cough onset is important but does not directly reduce the risk of ventilator-associated pneumonia.