A client who is taking an oral contraceptive receives a new prescription for erythromycin. Which instruction should the nurse provide to the client?
Stop the oral contraceptive immediately.
Take the medications at least 12 hours apart.
Use an additional form of contraception.
Avoid prolonged exposure to direct sunlight.
The Correct Answer is C
Choice A reason: Stopping the oral contraceptive immediately is not necessary and may increase the risk of unintended pregnancy. Erythromycin can reduce the effectiveness of oral contraceptives by interfering with their metabolism, but it does not make them completely ineffective.
Choice B reason: Taking the medications at least 12 hours apart is not sufficient to prevent the interaction between erythromycin and oral contraceptives. The interaction can occur regardless of the timing of the doses.
Choice C reason: Using an additional form of contraception is the best instruction for the client who is taking an oral contraceptive and erythromycin. This can prevent pregnancy in case the oral contraceptive fails due to the interaction with erythromycin. The additional form of contraception should be non-hormonal, such as a barrier method or a copper intrauterine device.
Choice D reason: Avoiding prolonged exposure to direct sunlight is a good advice for anyone taking erythromycin, as it can cause photosensitivity and increase the risk of sunburn. However, this is not related to the interaction with oral contraceptives and does not affect their efficacy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Filgrastim is a colony-stimulating factor that stimulates the bone marrow to produce more neutrophils, which are a type of white blood cell that fight infection. Filgrastim is used to treat neutropenia (low neutrophil count), which can be caused by chemotherapy, bone marrow transplant, or other conditions. The normal range of WBC is 5000 to 10,000/mm3 (5 to 10 x 109/L), and the normal range of neutrophils is 2500 to 8000/mm3 (2.5 to 8 x 109/L). Therefore, an increase in WBC from 2500/mm3 to 5000/mm3 indicates that filgrastim has been effective in increasing neutrophil production and improving the client's immune system. The nurse should inform the client that the medication has been effective and encourage them to continue taking it as prescribed.
Choice B reason: Reviewing the client's culture and sensitivity reports is not an action that the nurse should implement in this situation, but rather a routine assessment that the nurse should perform for any client with an infection. Culture and sensitivity reports identify the type and source of infection and the most effective antibiotic therapy. The nurse should review these reports to monitor the client's response to treatment and adjust the antibiotic regimen as needed.
Choice C reason: Assessing the client's vital signs is not an action that the nurse should implement in this situation, but rather a standard practice that the nurse should perform for any client. Vital signs include temperature, pulse, respiration, blood pressure, and oxygen saturation. The nurse should assess these parameters to detect any signs of infection, inflammation, or sepsis, such as fever, tachycardia, tachypnea, hypotension, or hypoxia.
Choice D reason: Implementing neutropenic precautions is not an action that the nurse should implement in this situation, but rather a preventive measure that the nurse should take for clients with severe neutropenia. Neutropenic precautions are a set of infection control practices that aim to protect clients with low neutrophil counts from exposure to pathogens. These include wearing gloves, masks, and gowns; washing hands frequently; avoiding contact with sick people or animals; and avoiding raw or undercooked foods. However, these precautions are not necessary for clients with normal or near-normal neutrophil counts, such as 5000/mm3.
Correct Answer is ["0.1"]
Explanation
To find out how many mL of dalteparin are needed for 2500 units, we need to use a proportion formula:
- (units of dalteparin)/(mL of dalteparin) = (units of dalteparin prescribed)/(mL of dalteparin needed)
- We can plug in the values that we know into the formula:
- (5000 units)/(0.2 mL) = (2500 units)/(x mL)
- We can cross-multiply and solve for x:
- 5000x = 2500 x 0.2
- x = (2500 x 0.2)/5000
- x = 0.1
- Therefore, the nurse should administer 0.1 mL of dalteparin to deliver 2500 units of the medication.
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