What are the expected findings in a patient experiencing hypokalemia?

Correct Answer: A

Rationale: The correct answer is A: Flattened T waves on an ECG. Hypokalemia is characterized by flattened T waves on an ECG, which is an early indicator of low potassium levels. Elevated ST segments (Choice B) are associated with conditions like myocardial infarction, not hypokalemia. Prominent U waves (Choice C) are typically seen in hypokalemia, but flattened T waves are more specific. Bradycardia (Choice D) can be a manifestation of severe hypokalemia but is not as specific as flattened T waves on an ECG.

Correct Answer: A

Rationale: The correct answer is A: 'Unrelieved pain, pallor, and pulselessness.' Compartment syndrome is characterized by increased pressure within a muscle compartment, leading to reduced blood flow and potential tissue damage. Early symptoms include unrelieved pain (out of proportion to the injury), pallor (pale skin color), and pulselessness (decreased or absent pulses). Choices B, C, and D are incorrect as they do not represent the classic early symptoms of compartment syndrome.

Correct Answer: A

Rationale: The correct answer is A: CD4 T-cell count below 180 cells/mm3. Monitoring the CD4 T-cell count is crucial in patients with HIV as it indicates the level of immunocompromise. A CD4 count below 180 cells/mm3 is considered severe immunocompromise and requires close monitoring and intervention. Choices B, C, and D are not the priority lab values to monitor in HIV patients. While white blood cell count, hemoglobin levels, and serum albumin levels can provide valuable information about the patient's health status, they are not as specific or indicative of HIV disease progression and management as the CD4 T-cell count.

Correct Answer: A

Rationale: When continuous bubbling is observed in the chest tube water seal chamber, tightening the connections of the chest tube system is the appropriate intervention. This action can often resolve an air leak, which is the common cause of continuous bubbling. Clamping the chest tube or replacing it is not recommended as the first-line intervention because it may lead to complications or unnecessary tube changes. Continuing to monitor the chest tube without addressing the air leak would delay necessary corrective action, potentially causing respiratory compromise in the patient. Therefore, tightening the connections of the chest tube system is the most suitable initial step to manage continuous bubbling in the water seal chamber.

Correct Answer: A

Rationale: The correct answer is A: CD4 T-cell count below 180 cells/mm3. Monitoring the CD4 T-cell count is crucial in patients with HIV as it indicates the level of immunocompromise. A count below 180 cells/mm3 signifies severe immunocompromise and an increased risk of opportunistic infections. Choices B, C, and D are not the priority lab values in HIV management. While white blood cell count, serum albumin levels, and hemoglobin levels are important, they do not directly reflect the immune status and progression of HIV as the CD4 T-cell count does.