The nurse is evaluating the outcomes for a client diagnosed with disseminated intravascular coagulation (DIC). Which laboratory value reflects a positive outcome?
Decreased D-dimer level
Elevated fibrinogen level
Decreased platelet count
Prolonged prothrombin time (PT)
The Correct Answer is A
A. A decreased D-dimer level is a positive outcome, as D-dimer is elevated in DIC due to the formation of clots and the breakdown of fibrin. Lower levels indicate less clot formation and better control of the condition.
B. Fibrinogen levels are typically low in DIC due to consumption of clotting factors. Elevated fibrinogen in this case would be a negative indicator, suggesting that clotting is not resolving.
C. A decreased platelet count is a hallmark of DIC and indicates ongoing consumption of platelets due to widespread clotting. A decrease would not be a positive outcome.
D. A prolonged PT is another indicator of DIC, suggesting impaired clotting function. This is not a positive outcome.
Nursing Test Bank
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Related Questions
Correct Answer is D
Explanation
A. The 20-gauge catheter in the right wrist is not ideal for blood transfusions, as wrist veins are smaller and may be less optimal for high-flow transfusions.
B. An 18-gauge catheter is appropriate for blood transfusions, but the catheter is currently in use for potassium chloride, which would need to be discontinued. The best choice is a separate site.
C. A 22-gauge catheter is not large enough for blood transfusion; it may cause hemolysis or slow the transfusion rate.
D. The 20-gauge catheter in the right forearm is an appropriate size for a blood transfusion and is currently infusing normal saline, which does not interfere with the blood transfusion.
Correct Answer is C
Explanation
A. Mobitz II is a type of second-degree AV block characterized by constant PR intervals and sudden dropped QRS complexes (i.e., the PR interval does not lengthen progressively). This is a more serious block because the dropped beats are unpredictable and could lead to complete block.
B. Sinus bradycardia is a slower-than-normal heart rate (usually less than 60 beats per minute) that originates from the sinus node. First-degree AV block is characterized by a prolonged PR interval, but unlike second-degree block, there are no dropped QRS complexes.
C. Mobitz I (Wenckebach) is a second-degree AV block where the PR interval gradually lengthens with each successive beat until a QRS complex is dropped. After the dropped beat, the cycle repeats. This is a relatively benign block and often resolves without intervention, though it requires monitoring.
D. Third-degree heart block (also known as complete heart block) occurs when there is no communication between the atria and ventricles. The atria and ventricles beat independently of each other. There are no relationship between the P waves and QRS complexes, and the ventricular rate is typically slower than the atrial rate.
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