when a client needs oxygen therapy what is the highest flow rate that oxygen can be delivered via nasal cannula
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1. When a client needs oxygen therapy, what is the highest flow rate that oxygen can be delivered via nasal cannula?

Correct answer: C

Rationale: The correct answer is 6 liters/minute. When a client requires oxygen therapy, the maximum flow rate that oxygen can be delivered via nasal cannula is 6 liters/minute. Nasal cannula can effectively deliver oxygen up to 6 liters/minute. Flow rates exceeding 6 liters/minute may lead to drying of the nasal passages and discomfort for the client. Higher flow rates, like 8 liters/minute, should be administered using a mask to ensure sufficient oxygenation. Options A, B, and D are incorrect as they indicate flow rates that surpass the recommended maximum for nasal cannula delivery.

2. When providing perineal care to a female client, how should the nurse perform the procedure?

Correct answer: A

Rationale: When providing perineal care to a female client, the nurse should wear gloves and wash the perineal area from front to back. This technique helps prevent the introduction of E. coli and other bacteria into the urethra, reducing the risk of urinary tract infections. Washing from back to front can introduce bacteria from the anal area to the urethra, leading to infections. Performing the procedure without gloves or having the client perform all care does not adhere to infection control practices. Pouring water from a sterile bottle alone may not ensure proper cleansing and infection prevention. Therefore, choices B, C, and D are incorrect as they do not follow proper perineal care guidelines.

3. Major competencies for the nurse giving end-of-life care include:

Correct answer: A

Rationale: In providing end-of-life care, nurses must possess essential competencies. Demonstrating respect and compassion, along with applying knowledge and skills in caring for both the family and the client, are crucial competencies. These skills help create a supportive and empathetic environment for individuals facing end-of-life situations. Choice B is incorrect because while assessing and intervening are important, they do not encompass the core competencies required for end-of-life care. Choice C is also incorrect; although setting goals and expectations is valuable, the primary focus should be on providing compassionate care. Choice D is incorrect as withholding sad news goes against the principles of honesty and transparency in end-of-life care.

4. A client with a closed chest tube drainage system accidentally disconnects the chest tube while being turned by the nurse. What should the nurse do first?

Correct answer: A

Rationale: When a chest tube becomes disconnected, the priority action is to immediately reattach it to the drainage system or submerge the end in a bottle of sterile water or saline solution to reestablish a water seal. This helps prevent air from entering the pleural space and causing complications. Calling the health care provider is important but not the first action in this emergency. Instructing the client to inhale and hold his breath should be avoided as it can introduce atmospheric air into the pleural space, leading to potential issues. Clamping the chest tube is generally contraindicated, especially in cases of residual air leak or pneumothorax, as it may result in a tension pneumothorax by preventing air from escaping.

5. When evaluating the lab work of a client in hepatic coma, which of the following lab tests is most important?

Correct answer: C

Rationale: When a client is in hepatic coma due to liver failure, the liver cannot metabolize amino acids completely, leading to elevated ammonia levels. Increased ammonia can cause brain-tissue irritation, worsening the coma. Therefore, monitoring serum ammonia levels is crucial in assessing the severity of hepatic coma. Choices A, B, and D are less relevant in the context of hepatic coma. Blood urea nitrogen primarily assesses kidney function, serum calcium levels are not directly related to hepatic coma, and serum creatinine is more indicative of kidney function rather than liver function in this scenario.

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