A nurse is caring for a 5-year-old patient whose temperature is 101.2° F. The nurse expects this patient to hyperventilate. Which factor does the nurse remember when planning care for this type of hyperventilation?
Anxiety over illness
Increased metabolic demands
Decreased drive to breathe
Infection destroying lung tissues
The Correct Answer is B
A. While anxiety may contribute to hyperventilation, in the context of a febrile child, the primary factor is usually metabolic.
B. Increased metabolic demands due to fever can elevate the body’s oxygen requirements, prompting hyperventilation as a compensatory mechanism.
C. Decreased drive to breathe would not lead to hyperventilation; rather, it might result in hypoventilation or respiratory distress.
D. Infection destroying lung tissues would typically lead to respiratory distress or failure, not directly cause hyperventilation without the context of increased metabolic needs.
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Related Questions
Correct Answer is D
Explanation
A. The nursing diagnosis "Impaired physical mobility" is appropriate and does not need revision.
B. There is no collaborative problem mentioned in the statement that requires revision.
C. The defining characteristic "patient's inability to ambulate" accurately reflects the patient's current condition and does not need changes.
D. The etiology "related to tibial fracture" should be revised to reflect a more precise causal factor that can be addressed by nursing interventions. A more appropriate etiology could specify the limitation in mobility rather than just stating the fracture.
Correct Answer is B
Explanation
A. Ventricular filling time and diastolic filling time are not formulas used to calculate cardiac output; they pertain to the phases of the cardiac cycle.
B. Cardiac output is calculated by multiplying stroke volume (the amount of blood ejected by the heart with each beat) by heart rate (the number of beats per minute). This formula accurately reflects the overall volume of blood the heart pumps in one minute.
C. Myocardial contractility and myocardial blood flow are important factors in cardiac function but do not directly provide a formula for calculating cardiac output.
D. Preload and afterload are factors that affect stroke volume but are not used to calculate cardiac output directly.
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