A nurse is caring for an infant who has gastroenteritis.
Which of the following assessment findings should the nurse report to the provider?
Sunken fontanels and dry mucous membranes
Temperature 38° C (100.4° F) and pulse rate 124/min.
Decreased appetite and irritability.
Pale and a 24-hr fluid deficit of 30 mL.
The Correct Answer is A

These are signs of severe dehydration in an infant, which can be life-threatening and should be reported to the provider immediately. The infant may need intravenous fluids and electrolytes to restore hydration and prevent complications.
Choice B is wrong because a temperature of 38° C (100.4° F) and pulse rate of 124/min are not abnormal for an infant and do not indicate severe dehydration. These are common findings in an infant who has gastroenteritis, which is an inflammation of the stomach and intestines caused by a virus, bacteria, or parasite.
Choice C is wrong because decreased appetite and irritability are also common findings in an infant who has gastroenteritis, but they do not indicate severe dehydration. The nurse should encourage oral rehydration with fluids such as breast milk, formula, or oral electrolyte solution.
Choice D is wrong because pale skin and a 24-hr fluid deficit of 30 mL are not signs of severe dehydration in an infant.
A fluid deficit of 30 mL is less than 1 oz and is not significant for an infant who weighs about 10 kg (22 lbs). A fluid deficit of more than 10% of body weight would indicate severe dehydration.
Normal ranges for vital signs in infants are as follows:
- Temperature: 36.5° C to 37.5° C (97.7° F to 99.5° F)
- Pulse rate: 100 to 160/min
- Respiratory rate: 30 to 60/min
- Blood pressure: 65/41 to 100/50 mm Hg
Normal ranges for fluid intake and output in infants are as follows:
- Fluid intake: 100 to 150 mL/kg/day
- Fluid output: 1 to 2 mL/kg/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
- . Answer and explanation.
The correct answer is choice C, first-degree atrioventricular block.
This is because the PR interval is longer than normal, which indicates a delay in the conduction of electrical impulses from the atria to the ventricles through the AV node. A normal PR interval is 0.12 to 0.2 seconds, or 3 to 5 small squares on the EKG strip.
In this case, the PR interval is 0.35 seconds, which is more than 5 small squares.
Choice A is wrong because atrial fibrillation is a type of arrhythmia where the atria beat irregularly and rapidly, producing chaotic and variable P waves and an irregular ventricular response.
There is no constant PR interval in atrial fibrillation.
Choice B is wrong because complete heart block is a type of arrhythmia where there is no conduction of electrical impulses from the atria to the ventricles, resulting in independent and dissociated atrial and ventricular rhythms.
There are no consistent P waves or PR intervals in complete heart block.
Choice D is wrong because premature atrial complexes are extra beats that originate from the atria and interrupt the normal sinus rhythm.
They produce abnormal P waves that are different from the sinus P waves, and may have a shorter or longer PR interval depending on the timing of the impulse.
However, they do not cause a constant prolongation of the PR interval.
Correct Answer is B
Explanation
Choice A rationale: Testing skin turgor on the abdomen is common in infants and young children, but in older adults, abdominal skin often loses elasticity due to aging, making it an unreliable site for assessment.
Choice B rationale: The skin over the sternum or the subclavicular area (shoulder/chest) is the most reliable site for older adults. These areas typically maintain more elastic tissue, providing a more accurate reflection of hydration.
Choice C rationale: Assessing the stomach is essentially the same as the abdomen. This site is prone to skin sagging and loss of subcutaneous fat in elderly patients, which can lead to false-positive signs of dehydration.
Choice D rationale: The skin on the neck is thin and highly susceptible to wrinkles and sun damage. Lifting the skin here in an older adult will often show "tenting" even if the patient is well-hydrated.
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