The nurse is caring for a client who received a transfusion of Fresh Frozen Plasma (FFP) for an acute GI bleed related to accidental wantarin overdose. Which laboratory result would indicate the need for an additional unit of Fresh Frozen Plasma (FFP) to correct the problem caused by the overdose?
INR = 3.7 (normal 0.9-1.1)
Hemoglobin = 6.3g/dL (normal Female: 11.7-15.5 g/dL: Male: 14-17:3 g/dL)
Fibrinogen = 90mg/dL (normal 200-400mg/dL)
Platelets = 101,000 mm3 (normal 150,000-450,000 mm3)
The Correct Answer is A
A. INR = 3.7: The International Normalized Ratio (INR) is a measure of blood clotting. An INR greater than
3.0 indicates that the blood is not clotting properly, which can be caused by warfarin overdose. An elevated INR requires FFP to correct coagulopathy.
B. Hemoglobin = 6.3g/dL: This is low, indicating anemia, but it is not directly related to warfarin overdose. The primary issue here is coagulopathy, not anemia.
C. Fibrinogen = 90mg/dL: Fibrinogen levels may be decreased in various conditions, but this alone does not necessarily require additional FFP unless it’s below a critical threshold. Fibrinogen is not the main marker for warfarin overdose.
D. Platelets = 101,000 mm3: This platelet count is within the lower end of the normal range but does not indicate that more FFP is needed in response to warfarin overdose.
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Related Questions
Correct Answer is C
Explanation
A. This test set is incomplete for diagnosing DIC. While PT and fibrinogen are important, the eosinophil count is not a key test for DIC.
B. While fibrin degradation products are useful, lactic acid is not specific for DIC and may indicate other issues. A complete blood count is helpful but not definitive for diagnosing DIC.
C. These are key markers for DIC. An elevated D-dimer indicates clot formation and breakdown, while fibrinogen and fibrin degradation products are used to assess clotting and fibrinolysis, both of which are abnormal in DIC.
D. Complete blood count, complete metabolic panel, and prothrombin time are general tests and can give some clues, but they are not definitive for diagnosing DIC.
Correct Answer is B
Explanation
A. Increased risk for cardiac dysrhythmias: While hyponatremia can sometimes contribute to cardiac dysrhythmias, it's not the primary concern in this case. The main issue is fluid overload.
B. Hyponatremia, or low sodium levels, is often associated with heart failure. In this condition, the heart's reduced pumping ability leads to fluid retention, which dilutes the sodium concentration in the blood.
C. Imbalance in the sodium-potassium pump: While this can contribute to electrolyte imbalances, it's not the direct cause of hyponatremia in heart failure.
D. Acute renal failure: While heart failure can lead to acute kidney injury, hyponatremia is primarily a result of fluid overload rather than kidney dysfunction.
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