For an arterial blood gas (ABG) to have full compensation, which of the following statements is correct?
pCO2 and pHCO3 and pH are abnormal but the pa02 remains between 80-100 mmHg
arterial pH & pCO2 are abnormal but the pHCO3 is starting to change
pCO2, pHCO3 and pH have adjusted in expected range in 72 hours
arterial pH is between 7.35-7.45 and the pCO2 & pO2 are abnormal
The Correct Answer is C
C. Full compensation typically occurs within 2 to 3 days (approximately 72 hours) after the onset of an acid-base disturbance. During full compensation, the primary acid-base disorder (e.g., respiratory acidosis or alkalosis, metabolic acidosis or alkalosis) is still present, but the compensatory mechanisms have effectively brought the pH, pCO2, and bicarbonate (pHCO3) levels back towards normal range.
A. Full compensation occurs when both the primary disorder (respiratory or metabolic) and the compensatory mechanism (renal or respiratory) are functioning to return the pH towards normal. In this option, while the pO2 is within the normal range, the pH, pCO2, and bicarbonate (pHCO3) are all abnormal, indicating an ongoing imbalance.
B. Full compensation occurs when all components of the ABG are within or approaching normal range, indicating that the body's compensatory mechanisms have effectively counteracted the primary acid- base disturbance. In this option, the bicarbonate (pHCO3) is mentioned as starting to change, indicating incomplete compensation.
D. While the pH is within the normal range, both the pCO2 and pO2 are abnormal, indicating a primary respiratory disturbance. In the case of full compensation, the pH, pCO2, and bicarbonate (pHCO3) levels would all be within or approaching normal range, indicating that the compensatory mechanisms have effectively counteracted the primary acid-base disturbance.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
C. This is a critical initial step before administering enteral feedings. Aspirating stomach contents helps confirm the placement of the nasogastric tube in the stomach rather than the respiratory tract. Checking the pH of the aspirate can further confirm gastric placement, as gastric fluid typically has an acidic pH (usually less than 5). This step ensures that the feeding will be delivered to the correct location, minimizing the risk of aspiration.
A. While it's important for the formula to be at an appropriate temperature for administration to prevent discomfort or complications such as cramping, this is not typically the first action to take. It can be done concurrently with other preparatory steps.
B. Proper labeling of the feeding container is essential for patient safety and adherence to institutional policies. However, this is not the first action to be completed. It's usually done after preparing the feeding and confirming the tube placement.
D. Assessing residual volume involves checking for any residual contents in the stomach from previous feedings. This step helps determine how much of the previous feeding remains in the stomach and whether it's safe to administer the next feeding. However, it typically follows confirming tube placement, as it's essential to know the tube is in the correct position before assessing residual volume.
Correct Answer is D
Explanation
D. This response validates the client's feelings without making assumptions, allows the client to share more about their experience, and fosters a supportive environment. It's important for healthcare professionals to create a space where clients feel heard and understood, especially during times of grief and new diagnoses, which can be overwhelming.
A. It acknowledges the client's feelings while also expressing the nurse's understanding of the grieving process. It reassures the client that they are not alone in their experiences, even if the nurse hasn't experienced the exact situation. However, telling the client that you know what they are going through may not make them feel understood.
B. While this response acknowledges the client's grief, it may come across as minimizing or dismissive of their current emotional distress related to their diabetes diagnosis. It focuses solely on the loss of the spouse and doesn't address the client's immediate concerns about managing their newly diagnosed condition. Therefore, it may not be the most therapeutic response in this situation.
C. This response might unintentionally invalidate the client's feelings by suggesting they should distract themselves from their grief and diabetes diagnosis. It could be perceived as dismissive or insensitive, as it doesn't address the client's emotional needs or offer support. Additionally, suggesting distraction may not be helpful or appropriate for someone experiencing significant emotional distress.
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