Order: Magnesium Sulfate 1 gram in 100mLs 0.09% NaCl over 2 hours. IV tubing has a drop factor of 30 gtt/mL. How many drops per minute will you give?
25 gtt/min
1500 gtt/min
50 gtt/min
83 gtt/min
The Correct Answer is C
A. 25 gtt/min: Calculating the correct rate reveals that this is not the correct answer.
B. 1500 gtt/min: This rate is too high; the calculation does not support this answer.
C. 50 gtt/min: To calculate: (100 mL / 120 min) × 30 gtt/mL = 50 gtt/min.
D. 83 gtt/min: This is too high based on the calculation.
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Correct Answer is C
Explanation
A. "A heart murmur is a high-pitched sound due to a narrow valve." Not all murmurs are high-pitched, nor are they always due to a narrow valve.
B. "This means that there is some inflammation around your heart." A murmur does not indicate inflammation around the heart; it typically indicates abnormal blood flow.
C. "This indicates turbulent blood flow through a valve." A heart murmur is caused by turbulent blood flow, often through a damaged or abnormal valve.
D. "A heart murmur is an extra sound due to blood entering an inflexible chamber." While inflexible chambers can cause extra heart sounds, this does not describe a murmur.
Correct Answer is B
Explanation
A. "Your heart condition is caused from stiffening of the walls of the ventricles." Stiffening of the ventricular walls describes restrictive cardiomyopathy, not DCM.
B. "Your heart condition is caused by excessive stretching of the ventricles." DCM involves excessive stretching and thinning of the ventricular walls, leading to impaired contraction.
C. "Your heart condition is caused when the ventricular tissue becomes fibrous and fatty." This describes arrhythmogenic right ventricular dysplasia, not DCM.
D. "Your heart condition is caused by thickening of the ventricular walls and septum." This describes hypertrophic cardiomyopathy, not DCM.