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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.)

Answer and Explanation

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.

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Correct Answer is A

Explanation

Choice A reason:

Decreased night vision is a significant concern for clients receiving miotics for open-angle glaucoma. Miotics, such as pilocarpine, work by constricting the pupil (miosis), which can reduce the amount of light entering the eye. This effect is particularly problematic in low-light conditions, leading to decreased night vision and increasing the risk of injury due to poor visibility

Choice B reason:

Increased sensitivity to light, also known as photophobia, can occur with the use of miotics, but it is not the primary concern related to the risk of injury. While photophobia can cause discomfort and avoidance of bright environments, it does not directly contribute to the risk of injury as significantly as decreased night vision.

Choice C reason:

Increased frequency of lacrimation (tearing) can be a side effect of miotics, but it is not a major factor in the risk of injury. Excessive tearing can cause discomfort and blurred vision temporarily, but it does not pose a significant risk for injury compared to decreased night vision.

Choice D reason:

Diminished color perception is not a common side effect of miotics. Miotics primarily affect the pupil size and accommodation, rather than color vision. Therefore, this choice is not relevant to the risk of injury associated with the use of miotics.

A. Observe bowel movement pattern and take a stool softener. B. Do not drink grapefruit juice after taking morphine. C. Take the benzodiazepine at the same time as taking the morphine. D. Watch for signs of agitation and record any insomnia.

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.

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Naxlex Comprehensive Predictor Exams

A client is receiving miotics for the treatment of open-angle glaucoma. The nurse determines that a priority nursing problem is the risk for injury. This nursing problem is based on which etiology?

Correct Answer is A

Explanation

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Correct Answer is A

Explanation

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