A nurse is caring for a client who is postoperative following vascular surgery.
Which of the following manifestations should indicate to the nurse that the client has developed a thrombus?

Choice A rationale:

Fine rales Fine rales, also known as crackles, are typically associated with conditions like pulmonary edema, pneumonia, or interstitial lung diseases. These sounds are often described as "crackling" or "popping" and are heard during inspiration. In an acute asthma exacerbation, expiratory wheezing is more characteristic than fine rales.

Choice B rationale:

Rhonchi Rhonchi are continuous, low-pitched sounds that can be heard in conditions like chronic obstructive pulmonary disease (COPD) or bronchitis. They are typically present during both inspiration and expiration. In an acute asthma exacerbation, you would expect to hear wheezing during expiration, which is different from the characteristics of rhonchi.

Choice D rationale:

Pleural friction rub Pleural friction rub is a grating, leathery sound caused by the inflamed pleura rubbing against each other. It is typically heard during both inspiration and expiration and is associated with conditions like pleuritis or pleurisy. It is not commonly associated with acute asthma exacerbation. Now, let's move on to the next question.

Choice A rationale:

The client's arterial blood gas (ABG) results indicate a low pH (acidemia) and high PaCO2, which is characteristic of respiratory acidosis. Respiratory acidosis occurs when there is inadequate removal of carbon dioxide (CO2) from the body, leading to an accumulation of CO2 and a decrease in pH. In this case, the high PaCO2 (50 mm Hg) indicates that the client is retaining carbon dioxide, likely due to impaired ventilation. The normal pH range is 7.35 to 7.45, and the normal PaCO2 range is 35 to 45 mm Hg. These ABG values reflect an acid-base imbalance in the respiratory system, specifically, respiratory acidosis.

Choice B rationale:

Metabolic alkalosis is characterized by an elevated pH and an increase in bicarbonate (HCO3) levels. This is not the condition described in the client's ABG results, as the pH is low (acidemic) and HCO3 levels are within the normal range (24 mEq/L).

Choice C rationale:

Metabolic acidosis is characterized by a low pH and a decreased HCO3 level. The client's ABG results do not align with metabolic acidosis since the pH is low (acidemic) and the HCO3 level is within the normal range (24 mEq/L).

Choice D rationale:

Respiratory alkalosis is characterized by a high pH and low PaCO2. The client's ABG results do not match this condition as the pH is low (acidemic) and the PaCO2 is high (50 mm Hg), indicating respiratory acidosis. Therefore, choice A, respiratory acidosis, is the correct interpretation of the ABG results.