Nokea
Claudication is a well-known effect of peripheral vascular disease. Which of the following facts about claudication is correct? Select the one that doesn't apply:
- A. It results when oxygen demand is greater than oxygen supply.
- B. It is characterized by pain that often occurs during rest.
- C. It is a result of tissue hypoxia.
- D. It is characterized by cramping and weakness.
Correct Answer: D
Rationale: Claudication is a symptom of peripheral vascular disease where there is an inadequate supply of oxygen to the muscles due to reduced blood flow. This mismatch between oxygen demand and supply leads to tissue hypoxia, resulting in cramping, weakness, and discomfort. Option D correctly states that claudication is characterized by cramping and weakness, making it the correct answer. Options A, B, and C are incorrect. Claudication occurs when oxygen demand exceeds supply, not the other way around as stated in Option A. Pain in claudication typically occurs with activity, not at rest as mentioned in Option B. While tissue hypoxia is a consequence of claudication, it is not the primary cause, making Option C incorrect.
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The nurse monitors a patient after chest tube placement for a hemopneumothorax. The nurse is most concerned if which assessment finding is observed?
- A. A large air leak in the water-seal chamber
- B. 400 mL of blood in the collection chamber
- C. Complaint of pain with each deep inspiration
- D. Subcutaneous emphysema at the insertion site
Correct Answer: B
Rationale: The nurse should be most concerned if 400 mL of blood is observed in the collection chamber as it may indicate the patient is at risk of developing hypovolemic shock. A large air leak in the water-seal chamber is expected initially after chest tube placement for a pneumothorax. While pain with deep inspiration should be treated, it is not as urgent as the risk of continued hemorrhage. Subcutaneous emphysema is not uncommon in a patient with pneumothorax and is usually harmless. However, a large amount of blood in the collection chamber is a more critical finding that requires immediate attention to prevent potential complications.
The nurse is reviewing the characteristics of culture. Which statement is correct regarding the development of one's culture?
- A. Learned through language acquisition and socialization.
- B. Genetically determined on the basis of racial background.
- C. A nonspecific phenomenon and is adaptive but unnecessary.
- D. Biologically determined on the basis of physical characteristics.
Correct Answer: A
Rationale: Culture is a complex phenomenon that includes attitudes, beliefs, self-definitions, norms, roles, and values learned from birth through the processes of language acquisition and socialization. It is not biologically or genetically determined, but rather acquired through social interactions. The correct answer, 'Learned through language acquisition and socialization,' aligns with the understanding that culture is a learned behavior. Choices B, C, and D are incorrect because culture is not genetically determined, nonspecific, or biologically based on physical characteristics. Understanding that culture is acquired through language and socialization is essential for healthcare providers to provide culturally competent care.
A diabetic patient's arterial blood gas (ABG) results are pH 7.28; PaCO2 34 mm Hg; PaO2 85 mm Hg; HCO3 18 mEq/L. The nurse would expect which finding?
- A. Intercostal retractions
- B. Kussmaul respirations
- C. Low oxygen saturation (SpO2)
- D. Decreased venous O2 pressure
Correct Answer: B
Rationale: Kussmaul respirations (deep and rapid) are a compensatory mechanism for metabolic acidosis. The low pH and low bicarbonate levels indicate metabolic acidosis. Intercostal retractions, low oxygen saturation, and decreased venous O2 pressure are not associated with acidosis. Intercostal retractions typically occur in respiratory distress, while low oxygen saturation and decreased venous O2 pressure are more related to respiratory or circulatory issues, not metabolic acidosis.
After a bronchoscopy, what is the most appropriate intervention for a patient with a chronic cough?
- A. Elevate the head of the bed to 80 to 90 degrees.
- B. Keep the patient NPO until the gag reflex returns.
- C. Place the patient on bed rest for at least 4 hours after bronchoscopy.
- D. Notify the health care provider about blood-tinged mucus.
Correct Answer: B
Rationale: The correct intervention is to keep the patient NPO until the gag reflex returns after a bronchoscopy. This is important because a local anesthetic is used during the procedure to suppress the gag and cough reflexes. Monitoring the return of these reflexes helps prevent the risk of aspiration and ensures the patient can safely resume oral intake. While blood-tinged mucus can occur after bronchoscopy, it is a common occurrence and not a cause for immediate concern. Placing the patient on bed rest for an extended period is unnecessary, and elevating the head of the bed to a high-Fowler's position is not specifically required post-bronchoscopy.
The nurse plans health care for a community with a large number of recent immigrants from Vietnam. Which intervention is the most important for the nurse to implement?
- A. Hepatitis testing
- B. Tuberculosis screening
- C. Contraceptive teaching
- D. Colonoscopy information
Correct Answer: B
Rationale: Tuberculosis (TB) is prevalent in many parts of Asia, including Vietnam, and the incidence of TB is higher in immigrants from Vietnam compared to the general U.S. population. Conducting tuberculosis screening is crucial to identify and address any cases promptly, especially in a community with recent immigrants from Vietnam. While teaching about contraceptive use, providing colonoscopy information, and testing for hepatitis may be relevant for certain individuals in the community, they are not as universally important as tuberculosis screening due to the increased risk of TB among Vietnamese immigrants.