Nokea
A client diagnosed with both a wound infection and osteomyelitis is to receive hyperbaric oxygen therapy. During the therapy, which priority intervention should the nurse implement?
- A. Maintaining an intravenous access
- B. Ensuring that oxygen is being delivered
- C. Administering sedation to prevent claustrophobia
- D. Providing emotional support to the client's family
Correct Answer: B
Rationale: Hyperbaric oxygen therapy is a process by which oxygen is administered at greater than atmospheric pressure. When oxygen is inhaled under pressure, the level of tissue oxygen is greatly increased. The high levels of oxygen promote the action of phagocytes and promote healing of the wound. Because the client is placed in a closed chamber, the administration of oxygen is of primary importance. Although options 1, 3, and 4 may be appropriate interventions, option 2 is the priority.
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A client at risk for respiratory failure is receiving oxygen via nasal cannula at 6 L per minute. Arterial blood gas (ABG) results indicate pH 7.29, PcO2 49 mm Hg, Po2 58 mm Hg, and HCO3 18 mEq/L. What intervention should the nurse anticipate that the primary health care provider will prescribe for respiratory support for this client?
- A. Intubating for mechanical ventilation
- B. Keeping the oxygen at 6 L per minute via nasal cannula
- C. Lowering the oxygen to 4 L per minute via nasal cannula
- D. Adding a partial rebreather mask to the current prescription
Correct Answer: A
Rationale: If respiratory failure occurs and supplemental oxygen cannot maintain acceptable PaO2 and PaCO2 levels, endotracheal intubation and mechanical ventilation are necessary. The client is exhibiting respiratory acidosis, metabolic acidosis, and hypoxemia. Lowering or keeping the oxygen at the same liter flow will not improve the client's condition. A partial rebreather mask will raise CO2 levels even further.
The nurse performing a prenatal assessment on a client in the first trimester of pregnancy discovers that the client frequently consumes beverages containing alcohol. Why should the nurse initiate interventions immediately to assist the client in avoiding alcohol consumption?
- A. To reduce the potential for fetal growth restriction in utero
- B. To promote the normal psychosocial adaptation of the mother to pregnancy
- C. To minimize the potential for placental abruptions during the intrapartum period
- D. To reduce the risk of teratogenic effects to embryo's developing fetal organs and tissue
Correct Answer: D
Rationale: Alcohol consumption during the first trimester poses a significant risk for teratogenic effects, as this is a critical period for organogenesis in the developing embryo. Exposure to alcohol can lead to fetal alcohol syndrome or other congenital anomalies, making immediate intervention essential to protect fetal development. While fetal growth restriction, psychosocial adaptation, and placental abruption are concerns, they are less directly associated with early pregnancy alcohol exposure compared to teratogenic effects.
The nurse hangs an intravenous (IV) bag of 1000 mL of 5% dextrose in water (D5W) at 3 pm and sets the flow rate to infuse at 75 mL/hour. At 11 pm, the nurse should expect the fluid remaining in the IV bag to be at approximately which level?
Correct Answer: 400 mL
Rationale: In an 8-hour period, 600 mL would infuse if an IV is set to infuse at 75 mL/hour. Therefore, 400 mL would remain in the IV bag.
A client receiving total parenteral nutrition (TPN) via a central venous catheter (CVC) is scheduled to receive an intravenous (IV) antibiotic. Which intervention should the nurse implement before administering the antibiotic?
- A. Turn off the TPN for 30 minutes.
- B. Ensure a separate IV access route.
- C. Flush the CVC with normal saline.
- D. Check for compatibility with TPN.
Correct Answer: B
Rationale: The TPN line is used only for the administration of the TPN solution to prevent crystallization in the CVC tubing and disruption of the TPN infusion. Any other IV medication must be administered through a separate IV access site, including a separate infusion port of the CVC catheter. Therefore, options 1, 3, and 4 are incorrect actions.
The nurse sends a sputum specimen to the laboratory for culture from a client with suspected active tuberculosis (TB). The results report that Mycobacterium tuberculosis is cultured. How should the nurse correctly analyze these results?
- A. The results are positive for active tuberculosis.
- B. The results indicate a less virulent strain of tuberculosis.
- C. The results are inconclusive until a repeat sputum specimen is sent.
- D. The results are unreliable unless the client has also had a positive tuberculin skin test (TST).
Correct Answer: A
Rationale: Culture of Mycobacterium tuberculosis from sputum or other body secretions or tissue confirms the diagnosis of active tuberculosis.