A nurse is caring for a child who has dehydration. Which of the following findings should the nurse expect?
Hct 45%.
Urine specific gravity 1.035.
Capillary refill less than 2 seconds.
Urine output 35 ml/hr.
The Correct Answer is B
Choice A rationale:
Hct 45% (Choice A) refers to the hematocrit level, which measures the proportion of blood volume occupied by red blood cells. While dehydration can lead to elevated hematocrit due to hemoconcentration, a hematocrit value of 45% is within the normal range for both males and females. Dehydration might cause a mild increase, but more significant elevations would be expected in cases of severe dehydration.
Choice B rationale:
Urine specific gravity 1.035 (Choice B) is an indicator of concentrated urine, which is a characteristic finding in dehydration. Dehydration reduces the body's water content, leading to more concentrated urine with higher specific gravity values. A normal range for urine-specific gravity is typically between 1.005 and 1.030.
Choice C rationale:
Capillary refill of less than 2 seconds (Choice C) is not a finding consistent with dehydration. Capillary refill time measures the time it takes for color to return to the nailbed after pressure is applied. Prolonged capillary refill time might indicate poor peripheral perfusion, which can be a sign of dehydration, but a refill time of less than 2 seconds is considered within the normal range.
Choice D rationale:
A urine output of 35 ml/hr (Choice D) is not indicative of dehydration. In fact, a urine output of 35 ml/hr is relatively normal and suggests adequate fluid intake and hydration. Dehydration would typically result in reduced urine output as the body conserves water.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Answer: d. Apply suction in 3 to 4-second increments.
Rationale:
- a. Instill 2 mL of 0.9% sodium chloride prior to suctioning:While saline instillations may be used in some cases,it is not universally recommended for infants with tracheostomies and depends on the specific situation and healthcare provider's protocol.The priority in this case is to quickly clear the partial mucus occlusion to prevent respiratory distress.
- b. Select a catheter that fits snugly into the tracheostomy tube:This isincorrect.Selecting a catheter that fits tightly can damage the delicate tracheal mucosa and increase the risk of bleeding.A smaller-diameter catheter that allows for gentle passage is preferred.
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Tracheostomy tube and different catheter sizes
- c. Use a clean technique when performing suctioning:This is absolutely essential for all suctioning procedures to minimize the risk of infection.However,it is not the specific action that addresses the immediate concern of clearing the partial mucus occlusion.
- d. Apply suction in 3 to 4-second increments:This is thecorrectapproach for suctioning an infant with a tracheostomy.Applying short,intermittent suction bursts minimizes the risk of hypoxia and tissue trauma while effectively removing secretions.
Therefore, the most important action for the nurse to take is to apply suction in short, 3-4 second bursts to effectively clear the mucus occlusion while minimizing risks to the infant.
Additional Points:
- The nurse should use sterile suction equipment and sterile technique throughout the procedure.
- The suction pressure should be set at the lowest effective level,typically 80-120 mmHg.
- The nurse should monitor the infant for signs of respiratory distress,such as increased work of breathing,retractions,and oxygen desaturation,before,during,and after suctioning.
- If the mucus occlusion is not cleared after several attempts,the nurse should seek assistance from ahealthcareprovider.
Correct Answer is C
Explanation
Choice A rationale:
Washing the child's pillow in cold water twice monthly is not a relevant instruction for controlling allergens in asthma management. Asthma triggers are often related to airborne allergens such as dust mites, pollen, and pet dander, and focusing on pillow washing alone does not address the broader issue of allergen exposure.
Choice B rationale:
Using a humidifier in the child's bedroom can actually worsen asthma symptoms. Humidifiers can increase the humidity in the air, promoting the growth of mold and dust mites, which are common allergens that can trigger asthma symptoms. Therefore, this instruction is not appropriate for asthma management.
Choice C rationale:
This is the correct answer. Using a damp cloth to dust the child's furniture weekly is a relevant instruction for controlling allergens. Dusting with a damp cloth helps to capture and remove allergens such as dust mites, pollen, and pet dander from surfaces, reducing the child's exposure to these triggers and potentially minimizing asthma symptoms.
Choice D rationale:
Installing carpet in the child's bedroom is not recommended for asthma management. Carpets can harbor dust mites, mold, and other allergens that can exacerbate asthma symptoms. Hard flooring surfaces that can be easily cleaned and do not trap allergens are a better choice for individuals with asthma.
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