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Before administering cefazolin (Ancef), the nurse checks for a previous allergic reaction to:

A.

Sulfonamides

B.

Macrolides

C.

Yeast

D.

Penicillin

Answer and Explanation

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.


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Related Questions

Correct Answer is A

Explanation

A. Ginger root:

Ginger root is well-known for its anti-nausea and anti-inflammatory properties. It has been used for centuries to alleviate motion sickness, nausea, and vomiting. Ginger works by helping to calm the stomach and alleviate gastrointestinal discomfort. Therefore, ginger root is a suitable herbal supplement for controlling nausea associated with motion sickness.

B. Garlic:

Garlic is not typically used for controlling nausea. While garlic has various health benefits, including cardiovascular and immune support, it is not known for its anti-nausea properties.

C. Kava:

Kava is an herbal supplement used for its anxiolytic and sedative effects. It is not commonly used for controlling nausea and may not be effective for alleviating symptoms of motion sickness.

D. Valerian:

Valerian is an herb primarily used for its sedative and anxiolytic properties. It is not commonly used for controlling nausea and would not be an appropriate choice for alleviating symptoms of motion sickness.

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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