Before administering cefazolin (Ancef), the nurse checks for a previous allergic reaction to:
Sulfonamides
Macrolides
Yeast
Penicillin
The Correct Answer is D
A. Sulfonamides:
Sulfonamides are a class of antibiotics that are structurally distinct from cephalosporins like cefazolin. Allergic reactions to sulfonamides do not necessarily indicate a risk of allergy to cefazolin. However, it's still important to assess for any previous allergic reactions to medications, including sulfonamides, as individuals can have multiple medication allergies.
B. Macrolides:
Macrolides are another class of antibiotics that are structurally different from cephalosporins. Allergic reactions to macrolides do not directly indicate an allergy to cefazolin. However, as with sulfonamides, it's crucial to assess for any history of allergic reactions to medications, including macrolides.
C. Yeast:
Yeast is not a class of antibiotics but rather a type of fungus. Allergic reactions to yeast are unrelated to cephalosporin antibiotics like cefazolin. Therefore, a history of allergic reactions to yeast does not suggest an allergy to cefazolin.
D. Penicillin:
This is the correct choice. Penicillins and cephalosporins share a similar beta-lactam ring structure. Individuals who have had allergic reactions to penicillin may have an increased risk of cross-reactivity with cephalosporins, including cefazolin. Therefore, it's crucial to assess for any previous allergic reactions to penicillin before administering cefazolin to avoid potential allergic reactions or adverse effects.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["50"]
Explanation
To calculate the infusion rate in gtt/min, the nurse needs to use the formula:
Infusion rate (gtt/min) = Volume (mL) x Drop factor (gtt/mL) / Time (min)
Plugging in the given values, we get:
Infusion rate (gtt/min) = 400 mL x 60 gtt/mL / 480 min
Simplifying, we get:
Infusion rate (gtt/min) = 50 gtt/min
Therefore, the nurse should set the manual IV infusion to deliver 50 gtt/min.
Correct Answer is C
Explanation
A. BP 98/62:
A blood pressure of 98/62 mmHg is within the normal range for an adult, although it's slightly lower than the average blood pressure. While monitoring blood pressure is important, this reading doesn't indicate a critical condition and doesn't require immediate intervention.
B. Urticaria:
Urticaria, also known as hives, is a skin rash characterized by raised, itchy welts. While it can be uncomfortable and may indicate an allergic reaction, it's not immediately life-threatening. However, it does warrant attention and further assessment.
C. Wheezing:
Wheezing is a high-pitched whistling sound that occurs during breathing and can indicate airway obstruction, such as in an allergic reaction or asthma exacerbation. Wheezing can be a sign of a severe allergic reaction or anaphylaxis, which requires immediate intervention to ensure the patient's airway remains open and to administer appropriate treatment.
D. Pulse rate 104/min:
A pulse rate of 104 beats per minute (bpm) is slightly elevated but within the normal range for an adult. While it's important to monitor heart rate, this finding alone doesn't indicate an immediate threat to the patient's life.
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