The practical nurse (PN) is preparing cefazolin 400 mg IM for a client with a gram-positive infection. The available vial is labeled, "Cefazolin 1 gram," and the instructions for reconstitution state, for IM use, add 2 mL sterile water for injection. The total volume after reconstitution is 2.5 mL.
After reconstitution, how many mL should be administered to the client?
(Enter numeric value only. If rounding is required, round to the whole number, nearest tenths/hundredth).
The Correct Answer is ["1"]
The concentration of cefazolin after reconstitution can be calculated as follows: Concentration = Total amount of drug / Total volume after reconstitution
Since the available vial contains 1 gram (1000 mg) of cefazolin and the total volume after reconstitution is 2.5 mL, we can calculate the concentration:
Concentration = 1000 mg / 2.5 mL = 400 mg/mL
Therefore, after reconstitution, the concentration of cefazolin is 400 mg/mL.
To administer a dose of 400 mg, we divide the desired dose by the concentration: Volume to administer = Desired dose / Concentration
Volume to administer = 400 mg / 400 mg/mL = 1 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Stomatitis refers to the inflammation of the mouth and oral mucosa, which can cause pain and difficulty swallowing. In the context of a client receiving chemotherapy, stomatitis is a common side effect that can occur due to the effects of chemotherapy on rapidly dividing cells, including those in the oral cavity. When a client develops stomatitis, it is important for the practical nurse (PN) to obtain information about the client's ability to swallow during a focused assessment. This is because stomatitis can significantly impact a client's ability to eat and drink comfortably, which can lead to dehydration and malnutrition. Assessing the client's ability to swallow helps determine the extent of the issue and guides appropriate interventions and support.
Correct Answer is A
Explanation
Based on the provided audio clip, the sound heard is a high-pitched, continuous, musical sound. This sound is characteristic of wheezing, which is caused by the narrowing of the airways due to inflammation, bronchoconstriction, or the presence of mucus. Wheezing is commonly associated with conditions such as asthma, chronic obstructive pulmonary disease (COPD), or bronchitis.
Let's evaluate the other options:
b) Rhonchi: Rhonchi are low-pitched, coarse, ratling sounds that typically indicate the presence of mucus or fluid in the larger airways. Rhonchi are often heard in conditions such as pneumonia or bronchitis, but they are different from the high-pitched wheezing sound heard in the audio clip.
c) Stridor: Stridor is a high-pitched, harsh, and crowing sound that is heard during inspiration. It is often associated with upper airway obstruction, such as in cases of croup, epiglottitis, or a foreign body obstruction. The sound in the audio clip does not match the characteristics of stridor.
d) Fine crackles: Fine crackles are discontinuous, high-pitched, and brief sounds that are typically heard during inspiration. They are often described as "velcro-like" or "rice crispies" and are associated with conditions such as pulmonary fibrosis or congestive heart failure. The sound in the audio clip does not resemble fine crackles.
In summary, the sound in the provided audio clip is best described as wheezing, characterized by a high- pitched, continuous, musical sound. Therefore, the practical nurse (PN) should document this sound as "wheeze."
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