A nurse is assessing a client who has a chest tube with a water seal drainage system.
Upon assessment, the nurse notes tidaling in the water seal.
Which of the following is an explanation for the tidaling?
The lung has re-expanded.
There is a loop of tubing below the drainage system.
The system is working properly.
The tubing is partially obstructed by clots.
The Correct Answer is C
The correct answer is Choice C, the system is working properly.
Choice A rationale: The lung has re-expanded is incorrect. If the lung has re-expanded, there would be no tidaling in the water seal chamber, as the pleural space would be restored to its normal negative pressure. Tidaling indicates that there is still air or fluid in the pleural space that needs to be drained
Choice B rationale: There is a loop of tubing below the drainage system is incorrect. A loop of tubing below the drainage system would not cause tidaling in the water seal chamber, but it could cause fluid accumulation in the tubing, which could impair the drainage and increase the risk of infection. The tubing should be straight and free of kinks or loops
Choice C rationale: The system is working properly is correct. Tidaling in the water seal chamber means that the water level rises and falls with the patient’s respirations. This is normal and expected, as it indicates that the chest tube is patent and connected to the pleural space, and that the drainage system is airtight and preventing air or fluid from entering the pleural space. Tidaling should stop when the lung is fully re-expanded or the chest tube is clamped
Choice D rationale: The tubing is partially obstructed by clots is incorrect. If the tubing is partially obstructed by clots, there would be no tidaling in the water seal chamber, as the chest tube would not be able to drain the air or fluid from the pleural space. The water level in the water seal chamber would be stagnant, and the patient may experience respiratory distress. The tubing should be checked regularly for clots and milked gently if needed
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Question 1: The correct answer is Choice A - Stabilize the tube by taping it to the infant’s cheek.
Choice A Rationale: Stabilizing the nasogastric tube by taping it to the infant's cheek is crucial to prevent displacement, which could lead to complications such as misplacement into the respiratory tract or discomfort for the infant. Proper securing ensures the tube remains in the intended position, facilitating the safe and effective delivery of nutrients. This action aligns with standard nursing practices to promote patient safety and comfort during enteral feedings.
Choice B Rationale: Option B suggests positioning the infant in a supine position during feedings, which is incorrect. Placing the infant in a supine position increases the risk of aspiration due to the potential for reflux. Instead, the infant should be positioned upright or semi-upright with the head elevated to minimize the risk of regurgitation and aspiration.
Choice C Rationale: Aspiration of residual fluid from the infant's stomach and discarding it (Option C) is not recommended practice. Aspirated gastric contents should be measured and assessed for volume and color to evaluate gastrointestinal function and potential complications. Discarding the aspirate without evaluation could lead to the oversight of important clinical indicators or abnormalities in the infant's condition.
Choice D Rationale: Microwaving the infant's formula to a temperature of 41°C (105.8°F) (Option D) is an incorrect practice. Heating formula in a microwave can result in uneven temperature distribution, creating hot spots that may cause burns to the infant's delicate oral mucosa or esophagus. The preferred method for warming formula is to use a water bath or bottle warmer to achieve a consistent temperature close to body temperature (around 37°C or 98.6°F).
Correct Answer is D
Explanation
Choice A rationale:
An angiocatheter is not appropriate for accessing an implanted venous access port. Angiocatheters are large-bore catheters designed for rapid fluid administration and are typically used for peripheral venous access. They are not suitable for accessing the small, specialized ports used for central venous access.
Choice B rationale:
A 25-gauge needle is too small for accessing an implanted venous access port. While smaller gauge needles are suitable for delicate procedures and patients with fragile veins, they might not provide adequate flow for certain therapies or blood draws. Accessing a port with a needle that is too small can lead to increased pressure, potentially damaging the port or causing discomfort to the patient.
Choice C rationale:
A butterfly needle is also not the best choice for accessing an implanted venous access port. Butterfly needles, also known as winged infusion sets, are commonly used for short-term peripheral venous access. They are not designed for accessing implanted ports, which require a noncoring needle for precise and safe access without damaging the port membrane.
Choice D rationale:
(Correct Choice) A noncoring needle, also known as a Huber needle, is the correct choice for accessing an implanted venous access port. Noncoring needles have a specially designed tip that creates a smaller puncture hole, reducing damage to the port membrane and minimizing patient discomfort. They are specifically designed for accessing ports and are the standard choice for this procedure.
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