The nurse is developing a plan of care for an infant with heart failure who is receiving digoxin.
The nurse would hold the dose of digoxin and notify the physician if the infant's apical pulse rate was:
80 beats per minute.
140 beats per minute.
100 beats per minute.
120 beats per minute.
The Correct Answer is A
Choice A rationale
Digoxin is a cardiac glycoside that slows and strengthens the heart rate and is commonly used in infants with heart failure. For an infant, the normal apical pulse rate typically ranges from 100 to 160 beats per minute. A rate of 80 beats per minute is significantly below the acceptable lower limit, indicating potential digoxin toxicity or an existing underlying bradycardia, requiring the nurse to hold the dose and notify the physician immediately to prevent serious adverse effects.
Choice B rationale
A heart rate of 140 beats per minute is within the normal physiological range for an infant, which is generally 100 to 160 beats per minute. This rate is considered acceptable and does not warrant holding the prescribed dose of digoxin, assuming other parameters and clinical signs of toxicity are absent. Digoxin aims to improve cardiac contractility and may slightly slow the rate but 140 is a safe rate.
Choice C rationale
An apical pulse rate of 100 beats per minute sits at the lower boundary of the normal range for an infant, which spans from 100 to 160 beats per minute. While close to the cutoff, it is still technically acceptable for administering digoxin. The nurse would monitor closely, but the dose would generally not be withheld unless the rate was less than 90 or 100, depending on the facility policy.
Choice D rationale
A heart rate of 120 beats per minute is well within the expected and safe normal range for an infant, which typically extends from 100 to 160 beats per minute. This rate is adequate and does not suggest bradycardia or pose any immediate concern regarding digoxin administration. The dose should be given as scheduled, and continued monitoring should take place.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
Providing false reassurance, such as stating "he will be okay," is not therapeutic because the outcome is uncertain, especially during active resuscitation efforts. The nurse must maintain honesty and support while acknowledging the gravity of the situation. Offering simple presence and resource information is much more supportive and appropriate for the family.
Choice B rationale
This response inappropriately questions the parents' actions and implies blame or judgment during an emotionally devastating crisis. Such a statement is highly unsupportive, unprofessional, and potentially damaging to the therapeutic relationship. The focus must remain on providing comfort, support, and necessary information to the grieving family.
Choice C rationale
Although it attempts to validate their feelings of fear, this response focuses on a specific, potentially guilt-inducing detail (the driving) which is likely irrelevant to the immediate need for support. It may exacerbate parental guilt during a critical time. A supportive response should be broad and non-judgmental, addressing their general distress and needs.
Choice D rationale
This statement is the most appropriate and therapeutic response, as it conveys non-judgmental presence, validation of the family's difficult emotional state, and an offer to provide information and answer questions. It establishes the nurse as a supportive resource for the family during a time of extreme crisis and uncertainty, which is the primary nursing role.
Correct Answer is B
Explanation
Choice A rationale
This statement reflects correct knowledge because head lice infestations, or pediculosis capitis, are highly contagious and spread through close contact or shared items, making it essential to check all household members to prevent reinfestation and ensure effective eradication of the parasites.
Choice B rationale
This statement supports a nursing diagnosis of knowledge deficit because it indicates a misconception that head lice are associated only with poor hygiene or low socioeconomic status, when in fact, lice infestation is unrelated to cleanliness and can occur in any population group through head-to-head contact.
Choice C rationale
This statement demonstrates correct knowledge because itching, particularly around the ears, neck, and scalp, is a common clinical manifestation of pediculosis capitis, caused by the louse saliva irritating the scalp, thus the parent correctly links the symptom to the new diagnosis.
Choice D rationale
This statement shows correct understanding of treatment because the nit comb is crucial for manually removing nits (lice eggs) that may remain attached to the hair shaft even after chemical pediculicide treatment, which often only kills live lice but not all the eggs.
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