Patients in shock receive fresh frozen plasma to replace which one of the following?
Red blood cells
Clotting factors
Platelets
White blood cells
The Correct Answer is B
Fresh frozen plasma (FFP) is a blood product that contains various clotting factors, including factors II, V, VII, VIII, IX, X, XI, and XIII. These clotting factors are essential for the normal coagulation process. In patients with shock, coagulation abnormalities can occur, and administration of FFP can help replenish the deficient clotting factors and restore proper coagulation function.
The other options mentioned are not the primary components replaced by fresh frozen plasma:
A. Red blood cells are in (option A) is incorrect because Red blood cells carry oxygen and are typically replaced by packed red blood cell transfusions in cases of significant blood loss or anemia. Fresh frozen plasma does not contain a significant amount of red blood cells.
C. Platelets in (option C) is incorrect because: Platelets play a role in blood clotting and are typically replaced by platelet transfusions in cases of thrombocytopenia or platelet dysfunction. Fresh frozen plasma may contain a small number of platelets but is not the primary source for platelet replacement.
D. White blood cells in (option D) is incorrect because White blood cells are part of the immune system and are not typically replaced using fresh frozen plasma. Fresh frozen plasma does not contain a significant amount of white blood cells.
Therefore, fresh frozen plasma is primarily administered to patients in shock to replace clotting factors and help restore proper coagulation function.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The QTc (corrected QT) interval is a measure of the time it takes for the ventricles to depolarize and repolarize during a cardiac cycle. It is corrected for heart rate (HR) to account for variations in the cardiac cycle length.
The normal range for the QTc interval varies depending on the calculation method used but generally falls within 0.36 to 0.44 seconds. In the given options, the range of 0.33 to 0.47 seconds for the QTc interval is wider than the normal range, suggesting a prolonged QTc interval, which can be indicative of a potential risk for arrhythmias, including ventricular tachycardia and torsades de pointes.
B. QT interval that varies with HR in (option B) is normal because The QT interval alone can vary with heart rate, and this is considered a normal physiological adaptation.
C. QRS interval <0.12 seconds in (option C) is normal because The QRS interval represents the time it takes for ventricular depolarization and is normally less than 0.12 seconds.
D. PR interval 0.12 to 0.24 seconds in (option D) is normal because The PR interval represents the time it takes for atrial depolarization and conduction through the AV node. The normal range is typically 0.12 to 0.20 seconds.
Correct Answer is ["18"]
Explanation
Step 1: Convert the patient's weight from pounds to kilograms. 130 pounds ÷ 2.205 (1 pound = 0.453592 kilograms) ≈ 58.97 kilograms
Step 2: Calculate the total dosage of Dobutamine required per hour based on the weight-specific dose. 2.5 mcg/kg/min × 58.97 kg = 147.425 mcg/min
Step 3: Calculate the infusion rate (mL/hr) using the concentration of Dobutamine in the prepared solution. The solution contains 250 mg of Dobutamine in 500 mL, which means there are 250,000 mcg of Dobutamine in 500 mL. To determine the mL/hr, divide the required dosage (147.425 mcg/min) by the amount of Dobutamine in 500 mL (250,000 mcg) and multiply by 500 mL (volume of the solution).
(147.425 mcg/min ÷ 250,000 mcg) × 500 mL ≈ 0.295 mL/min
To get the mL/hr, we convert the rate from minutes to hours (60 minutes = 1 hour):
0.295 mL/min × 60 min/hr ≈ 17.7 mL/hr
Round the answer to the nearest whole number:
Approximately 18 mL/hr of Dobutamine should be administered to the patient.
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