what does continuous bubbling in the chest tube water seal chamber indicate

ATI RN

ATI Capstone Medical Surgical Assessment 2 Quizlet

1. What does continuous bubbling in the chest tube water seal chamber indicate?

A. An air leak
B. Normal chest tube function
C. A blocked chest tube
D. Continuous drainage from the chest tube

Correct answer: A

Rationale: Continuous bubbling in the water seal chamber indicates an air leak in the chest tube system. This occurs when air is entering the system from the outside, preventing the lung from fully re-expanding. Choice B is incorrect because continuous bubbling is not a sign of normal chest tube function. Choice C is incorrect because a blocked chest tube would typically exhibit no bubbling or fluctuation in the water seal chamber. Choice D is incorrect as continuous drainage would not cause bubbling in the water seal chamber.

2. What is the priority action when the nurse administers insulin for a misread blood glucose reading?

A. Monitor for signs of hypoglycemia
B. Monitor for hyperglycemia
C. Administer glucose IV
D. Document the incident

Correct answer: A

Rationale: The priority action when the nurse administers insulin for a misread blood glucose reading is to monitor for signs of hypoglycemia. Insulin administration based on a misread blood glucose could lead to hypoglycemia due to an unnecessary dose. Monitoring for signs of hypoglycemia is crucial for prompt intervention if blood glucose levels drop dangerously low. Option B, monitoring for hyperglycemia, is incorrect in this situation as the concern is over-treatment with insulin causing hypoglycemia. Option C, administering glucose IV, is only necessary if hypoglycemia occurs. Option D, documenting the incident, is important for reporting and learning purposes but is not the immediate priority when the focus is on patient safety and preventing complications.

3. What lab value should be prioritized in a patient with HIV?

A. CD4 T-cell count below 180 cells/mm3
B. Hemoglobin levels
C. Serum albumin levels
D. White blood cell count

Correct answer: A

Rationale: The correct answer is A: CD4 T-cell count below 180 cells/mm3. In a patient with HIV, monitoring the CD4 T-cell count is crucial as it reflects the status of the immune system. A CD4 T-cell count below 200 cells/mm3 indicates severe immunocompromise and risk of opportunistic infections. Hemoglobin levels (choice B) are important for assessing anemia but do not directly reflect the immune status in HIV patients. Serum albumin levels (choice C) are indicators of nutritional status and inflammation, not specific to HIV disease progression. White blood cell count (choice D) may fluctuate due to various conditions and is not as specific as the CD4 T-cell count in assessing HIV progression.

4. What is the preferred electrical intervention for a patient with ventricular tachycardia with a pulse?

A. Synchronized cardioversion
B. Defibrillation
C. Pacing
D. Medication administration

Correct answer: A

Rationale: The correct answer is A: Synchronized cardioversion. In ventricular tachycardia with a pulse, synchronized cardioversion is the preferred electrical intervention. Synchronized cardioversion is used to treat tachyarrhythmias where there is a pulse present. Defibrillation (choice B) is used in emergencies for pulseless ventricular tachycardia or ventricular fibrillation. Pacing (choice C) is more suitable for bradycardias or certain conduction abnormalities. Medication administration (choice D) may be used in stable cases or as an adjunct to other treatments, but synchronized cardioversion is the primary intervention for ventricular tachycardia with a pulse.

5. What is a characteristic sign of hypokalemia on an ECG?

A. Flattened T waves
B. ST elevation
C. Prominent U waves
D. Widened QRS complex

Correct answer: A

Rationale: Flattened T waves are a characteristic sign of hypokalemia on an ECG. When potassium levels are low, it can lead to changes in the ECG, such as T wave flattening. This alteration is important to recognize as it indicates potential electrolyte imbalances. ST elevation (Choice B) is not typically associated with hypokalemia but can be seen in conditions like myocardial infarction. Prominent U waves (Choice C) are associated with hypokalemia, but flattened T waves are more specific. Widened QRS complex (Choice D) is not a typical ECG finding in hypokalemia but can be seen in conditions like hyperkalemia.