A dehydrated child has intravenous aid therapy ordered. The child weighs 10 kg. Physician ordered Lactated Ringer's solution 40 ml/kg over 4 hours How many miles per hour will this child receive?
300ml/hour
100 mL/hour
50mL/hour
200 ml/hour
The Correct Answer is B
Infusion rate (mL/hour) = Total volume (mL) / Total time (hours)
Given:
Child's weight: 10 kg
Ordered volume: 40 mL/kg
Total time: 4 hours
First, calculate the total volume of Lactated Ringer's solution needed:
Total volume = 40 mL/kg × 10 kg = 400 mL
Then, divide the total volume by the total time to find the infusion rate:
Infusion rate = 400 mL / 4 hours = 100 mL/hour
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Drooling:
Drooling can occur post-tonsillectomy due to throat discomfort or swelling. However, it is not specific to hemorrhage. It may result from pain, swelling, or difficulty swallowing.
B. Continuous swallowing:
Continuous swallowing is indeed a clinical manifestation of hemorrhage after a tonsillectomy. The presence of blood in the throat triggers the swallowing reflex, leading to frequent swallowing by the patient. This symptom is characteristic of hemorrhage and requires immediate medical attention.
C. Poor fluid intake:
Poor fluid intake can occur post-tonsillectomy due to pain, discomfort, or nausea. While it can be a concern for overall recovery, it is not specific to hemorrhage.
D. Increased pain:
Increased pain can be associated with hemorrhage, especially if it is sudden, severe, or worsening. However, it is not as specific as continuous swallowing in indicating hemorrhage post-tonsillectomy. Increased pain can also be due to various other reasons such as inflammation, infection, or trauma.
Correct Answer is C
Explanation
A. Machine-like murmur:
A machine-like murmur typically refers to a continuous murmur, which can be heard throughout systole and diastole. While machine-like murmurs can be associated with certain cardiac conditions, such as patent ductus arteriosus (PDA), they are not typically heard in coarctation of the aorta. In coarctation of the aorta, a systolic ejection murmur may be heard over the upper left sternal border due to turbulent blood flow across the narrowed aortic segment.
B. Severe cyanosis:
Cyanosis refers to a bluish discoloration of the skin and mucous membranes due to decreased oxygenation of the blood. While cyanosis can occur in various congenital heart defects, such as tetralogy of Fallot, it is not a characteristic manifestation of coarctation of the aorta. Coarctation of the aorta typically results in decreased blood flow to the lower extremities rather than mixing of oxygenated and deoxygenated blood.
C. Decreased blood pressure in the legs:
This is the correct choice. Coarctation of the aorta is characterized by narrowing of the aorta, which leads to decreased blood flow to the lower extremities. Consequently, blood pressure measurements in the legs may be lower compared to those in the arms. This finding is often a key indicator of coarctation of the aorta.
D. Pulmonary edema:
Pulmonary edema refers to the accumulation of fluid in the lungs and is typically associated with conditions such as heart failure or fluid overload. While some congenital heart defects may lead to heart failure and subsequent pulmonary edema, coarctation of the aorta does not directly cause pulmonary edema. Instead, it primarily affects blood flow to the lower extremities due to the narrowing of the aorta.

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