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A patient presents with acute pain, swelling, and deformity of the ankle following a twisting injury. X-ray reveals a fracture involving the distal fibula with associated widening of the ankle mortise. Which type of ankle fracture is most likely?
- A. Maisonneuve fracture
- B. Pilon fracture
- C. Tillaux fracture
- D. Trimalleolar fracture
Correct Answer: D
Rationale: A trimalleolar fracture is characterized by fractures involving the lateral malleolus (distal fibula), medial malleolus (distal tibia), and the posterior tubercle of the distal tibia. This fracture pattern results in instability of the ankle joint and is often associated with widening of the ankle mortise on X-ray. The deformity and swelling seen in this patient are indicative of a trimalleolar fracture and are typically caused by a high-energy injury, such as a forceful twisting motion. Treatment for trimalleolar fractures often involves surgical intervention to stabilize the ankle joint and restore normal function.
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A patient with acute respiratory distress syndrome (ARDS) develops refractory hypoxemia despite maximal ventilatory support and prone positioning. Which of the following adjunctive therapies is most likely to improve oxygenation and reduce mortality in this patient?
- A. High-frequency oscillatory ventilation (HFOV)
- B. Continuous renal replacement therapy (CRRT)
- C. Extracorporeal membrane oxygenation (ECMO)
- D. Inhaled nitric oxide (iNO)
Correct Answer: C
Rationale: In a patient with ARDS who is experiencing refractory hypoxemia despite maximal ventilatory support and prone positioning, the use of extracorporeal membrane oxygenation (ECMO) is a potentially life-saving adjunctive therapy. ECMO works by providing temporary support for gas exchange outside the body, allowing the lungs to rest and heal while providing adequate oxygenation and carbon dioxide removal. The use of ECMO has been associated with improved oxygenation and reduced mortality in severe cases of ARDS, especially in patients who fail conventional therapies. High-frequency oscillatory ventilation (HFOV) has not consistently shown mortality benefit in ARDS, continuous renal replacement therapy (CRRT) is not directly indicated for hypoxemia in ARDS, and inhaled nitric oxide (iNO) has shown limited benefit in improving oxygenation in ARDS without a clear impact on mortality.
A postpartum client who delivered twins expresses concerns about breastfeeding both infants simultaneously. What nursing intervention should be prioritized to address the client's concerns?
- A. Demonstrating tandem breastfeeding positions and techniques
- B. Recommending the use of nipple shields to facilitate latch for both infants
- C. Encouraging the client to alternate breastfeeding sessions between the infants
- D. Referring the client to a lactation consultant for assistance
Correct Answer: A
Rationale: Demonstrating tandem breastfeeding positions and techniques should be prioritized as the nursing intervention to address the client's concerns about breastfeeding both infants simultaneously. Tandem breastfeeding involves nursing twins at the same time and can help enhance milk production, promote bonding with both infants, and save time for the mother. By showing the client the proper positions and techniques for tandem breastfeeding, the nurse can empower the client with the knowledge and skills needed to successfully breastfeed both infants together. This intervention can ultimately support the client in feeling more confident and competent in managing the challenges of breastfeeding twins.
A nurse is preparing to perform a wound irrigation procedure for a patient with a contaminated wound. What solution should the nurse use for wound irrigation?
- A. Sterile water
- B. Normal saline
- C. Hydrogen peroxide
- D. Betadine solution
Correct Answer: B
Rationale: Normal saline is the preferred solution for wound irrigation because it is isotonic and will not damage healthy tissue or delay wound healing. It helps to remove debris and pathogens from the wound, promoting a clean environment for healing. Sterile water can be used if normal saline is not available, but it may cause cellular damage if used in large volumes. Hydrogen peroxide and Betadine solution are not recommended for wound irrigation as they can be cytotoxic to the tissues and interfere with the wound healing process. It's important for the nurse to use evidence-based practice and follow recommended guidelines to promote optimal wound healing outcomes.
Which element of malpractice occurs when the nurse does not act as a reasonable, prudent person would have acted in a similar circumstance?
- A. Duty
- B. Injury or damage
- C. Breach of duty
- D. Causation
Correct Answer: C
Rationale: Breach of duty is the element of malpractice that occurs when the nurse does not act as a reasonable, prudent person would have acted in a similar circumstance. This means that the nurse failed to uphold the standard of care expected in their practice. In a malpractice case, it must be proven that the nurse breached their duty of care towards the patient by not providing the expected level of skill and care that another reasonable nurse in the same situation would have provided.
The immunity conferred by tetanus toxoid is best described as:
- A. Lifelong passive
- B. Temporary passive
- C. Long-lasting active
- D. Lifelong active
Correct Answer: C
Rationale: Tetanus toxoid provides long-lasting active immunity. When a person is vaccinated with tetanus toxoid, their immune system is stimulated to produce antibodies against the tetanus toxin. These antibodies provide protection against tetanus infection by recognizing and neutralizing the toxin if the person is exposed to the bacteria that causes tetanus in the future. This active immune response can last for many years, providing ongoing protection against tetanus. However, booster doses are recommended every 10 years to maintain adequate levels of protection.