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A nurse is assessing a client with a history of heart failure who presents with severe edema in the lower extremities. The nurse would document the presence of +4 pitting edema after noting which finding?

A.

Severe pitting, very swollen leg and indentation that lasts for a long time, 8 mm deep

B.

Slight indentation, with no perceptible swelling of the leg. 2 mm deep

C.

Moderate pitting, with indentation that subsides rapidly, 4 mm deep

D.

Deep pitting, swollen leg, and indentation that remains for a short time, 6 mm deep

Answer and Explanation

The Correct Answer is A

A. +4 pitting edema is characterized by severe pitting that creates a deep indentation (greater than 8 mm) that remains for a prolonged period. This description matches the findings in option 

 

B. This describes +1 pitting edema, which is not consistent with +4 edema.  

 

C. This option describes +2 or +3 pitting edema, as the indentation subsides rapidly, which does not align with +4.  

 

D. Although this describes deep pitting, the depth is less than 8 mm, which is not consistent with +4 edema.


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Correct Answer is D

Explanation

A. The iliac pulse is located near the pelvis and is not used for assessing circulation in the lower extremities.


B. The femoral pulse is located in the upper thigh, not near the posterior tibial area.


C. The popliteal pulse is found at the back of the knee and is higher than the posterior tibial location.


D. The posterior tibial pulse is correctly located behind the medial malleolus on the inner side of the ankle. This location is where the posterior tibial artery is accessible and is commonly used to assess blood flow to the lower extremities.

Correct Answer is A

Explanation

A. Respiratory acidosis: The pH is low (indicating acidosis), and the Paco₂ is elevated, which signifies that carbon dioxide retention is causing the acidosis. This pattern indicates respiratory acidosis, as the elevated HCO₃ suggests a compensatory response.

B. Respiratory alkalosis: Respiratory alkalosis would show a high pH with a low Paco₂. This is not consistent with the client’s lab results.

C. Metabolic acidosis: Metabolic acidosis would show a low pH with a low HCO₃. In this case, the HCO₃ is slightly elevated, ruling out metabolic acidosis.

D. Metabolic alkalosis: Metabolic alkalosis would show a high pH with an elevated HCO₃, which does not match the client’s results.

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