The healthcare provider prescribes enoxaparin sodium 80 mg SUBQ three times daily. The nurse is preparing a preloaded 1 mL syringe labeled “Enoxaparin sodium injection, USP 60 mg/0.6 mL.”
How many mL should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
The Correct Answer is ["0.8"]
Calculation Steps
Step 1: Identify the concentration of the medication in the syringe.
The syringe is labeled “Enoxaparin sodium injection, USP 60 mg/0.6 mL.”
Step 2: Calculate the amount of medication per mL.
60 mg ÷ 0.6 mL = 100 mg/mL
Result = 100 mg/mL
Step 3: Determine the prescribed dose.
The prescribed dose is 80 mg.
Step 4: Calculate the volume to administer.
80 mg ÷ 100 mg/mL = 0.8 mL
Result = 0.8 mL
Therefore, the nurse should administer 0.8 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A Reason
Morphine, an opioid analgesic, is commonly prescribed for severe pain management, such as in cases of metastatic cancer. One of the well-known side effects of morphine is constipation. This occurs because opioids slow down gastrointestinal motility, leading to harder and less frequent stools. Therefore, it is crucial for patients taking morphine to monitor their bowel movements and use stool softeners or laxatives as needed to prevent constipation. This choice indicates that the client understands the importance of managing this common side effect, which can significantly impact their comfort and quality of life.
Choice B Reason
Grapefruit juice is known to interact with various medications by inhibiting the cytochrome P450 3A4 (CYP3A4) enzyme in the liver, which can lead to increased blood levels of certain drugs. However, morphine is primarily metabolized by the liver enzyme UGT2B7, not CYP3A4. Therefore, grapefruit juice does not significantly affect morphine metabolism. This choice reflects a misunderstanding of the specific interactions relevant to morphine.
Choice C Reason
Taking a benzodiazepine at the same time as morphine can be dangerous due to the risk of additive central nervous system (CNS) depression. Both morphine and benzodiazepines can cause sedation, respiratory depression, and impaired cognitive and motor functions. Concurrent use increases the risk of severe side effects, including potentially life-threatening respiratory depression. This choice indicates a lack of understanding of the risks associated with combining these medications.
Choice D Reason
While it is important to monitor for signs of agitation and insomnia, these are not the primary concerns associated with morphine use. Morphine is more likely to cause sedation rather than agitation, and insomnia is not a common side effect. This choice does not reflect a comprehensive understanding of the primary side effects and necessary precautions related to morphine use.
Correct Answer is ["A"]
Explanation
Choice A reason:
Heart sounds: Monitoring heart sounds is crucial for evaluating the effectiveness of medications in a client with heart failure and coronary artery disease. Changes in heart sounds, such as the presence of new murmurs or gallops, can indicate worsening heart failure or other cardiac complications1. Regular assessment helps in early detection and management of potential issues.
Choice B reason:
Blood pressure: Blood pressure monitoring is essential for clients with hypertension and those taking medications like atenolol and enalapril. These medications are used to manage blood pressure and reduce the workload on the heart. Regular monitoring ensures that the medications are effectively controlling blood pressure within the target range, typically less than 130/80 mm Hg.
Choice C reason:
Bowel sounds: While assessing bowel sounds is important for overall health, it is not directly related to evaluating the effectiveness of heart failure, CAD, or hypertension medications. Bowel sounds are more relevant in gastrointestinal assessments and do not provide specific information about the effectiveness of the prescribed cardiac medications.
Choice D reason:
Daily weight: Monitoring daily weight is a key assessment for clients with heart failure. Sudden weight gain can indicate fluid retention, which is a sign of worsening heart failure. Furosemide, a diuretic, helps manage fluid balance, and daily weight monitoring helps evaluate its effectiveness in preventing fluid overload.
Choice E reason:
Range of motion: Assessing range of motion is important for overall mobility and physical health but is not directly related to evaluating the effectiveness of medications for heart failure, CAD, or hypertension. It is more relevant in musculoskeletal assessments and rehabilitation.
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