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 ["A","B","C","D","E"]
Explanation
A. A healthy stoma should appear moist and shiny, indicating adequate blood supply and hydration of the tissue. Dryness or dullness of the stoma may indicate poor blood flow or dehydration and should be further evaluated.
B. A healthy stoma typically appears deep pink to red in color, indicating good tissue perfusion. Pallor or cyanosis of the stoma may indicate inadequate blood supply and should be assessed promptly.
C. The skin around the stoma, known as the peristomal skin, should be intact, without signs of irritation, redness, or tenderness. Irritation or breakdown of the peristomal skin can occur due to leakage of stool or irritation from ostomy appliances and should be addressed promptly to prevent skin complications.
D. A flat abdomen suggests normal abdominal contour without distention or bulging. Distention or bulging of the abdomen may indicate underlying issues such as bowel obstruction, gas accumulation, or fluid retention and should be assessed further.
E. Bowel sounds are indicative of gastrointestinal motility and function. Normal bowel sounds are present and audible in healthy individuals and are characterized by 8 to 10 clicks or gurgles per minute. Absence or abnormal bowel sounds may indicate bowel obstruction, ileus, or other gastrointestinal disorders and should be assessed further.
Correct Answer is C
Explanation
C. This allows healthcare providers to quickly administer treatments without the need for repeated venipuncture, which can be beneficial in various medical situations where time and vein preservation are critical.
A. Peripheral intravenous saline locks are not typically used to accommodate highly irritating or hyperosmolar solutions. Saline locks are used to maintain venous access without continuous infusion, and they are generally used with isotonic solutions to prevent complications such as phlebitis or infiltration.
B. The access is not very reliable when used for drawing samples repeatedly.
D. While peripheral intravenous saline locks can be used for intermittent administration of IV antibiotics or other medications, they are not typically used for prolonged IV antibiotic administration.
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