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. 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"]
This is the correct answer because the concentration of cefazolin after reconstitution is 1 gram/2.5 mL, which is equivalent to 400 mg/1 mL. Therefore, to administer 400 mg of cefazolin, the PN should draw up 1 mL of the reconstituted solution. This can be calculated using the formula:
Desired dose / Available dose = Volume to administer
400 mg / 1000 mg = x mL / 2.5 mL
x = (400 x 2.5) / 1000
x = 1 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
The correct answer and explanation is:
d) Massage the fundus and avoid direct pressure on the cesarean incision.
This is the best action to take for a client who experiences a sudden gush of vaginal blood and clots after a
cesarean section. Massaging the fundus helps to stimulate uterine contractions and reduce bleeding.
Avoiding direct pressure on the incision prevents pain and wound dehiscence.
a) Insert an indwelling catheter to empty the bladder and contract the fundus.
This is not the first action to take for a client who experiences a sudden gush of vaginal blood and clots after a cesarean section. Inserting an indwelling catheter requires a physician's order and may cause discomfort and infection. The client may already have a catheter in place after the surgery.
b) Check fundal consistency and continue to monitor the lochial flow amount.
This is not enough to do for a client who experiences a sudden gush of vaginal blood and clots after a cesarean section. Checking fundal consistency and monitoring lochial flow are important, but they do not address the cause of bleeding or prevent further blood loss.
c) Return the client to bed and maintain bedrest until the lochial flow slows.
This is not appropriate for a client who experiences a sudden gush of vaginal blood and clots after a cesarean section. Returning the client to bed and maintaining bedrest may delay ambulation and increase the risk of thromboembolism. It also does not stop the bleeding or treat the underlying cause.
Correct Answer is D
Explanation
Choice A rationale:
Checking the client's temperature is important for assessing the client's condition, but it is not a priority before administering penicillin G IV for meningitis.
Choice B rationale:
Assessing the client's level of consciousness is essential for monitoring neurological status, but it is not the highest priority action before administering penicillin G IV for meningitis.
Choice C rationale:
Asking the client about any history of allergies is important for assessing potential allergic reactions to medications. However, the most critical action before administering penicillin G IV for meningitis is to obtain a blood sample for culture and sensitivity. This action helps identify the causative organism and guides appropriate antibiotic therapy, as meningitis can be life-threatening and requires prompt treatment.
Choice D rationale:
Obtaining a blood sample for culture and sensitivity is the highest priority action before administering penicillin G IV for meningitis. Identifying the specific pathogen responsible for the infection is crucial for selecting the most effective antibiotic therapy and preventing complications.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.