A client receives a prescription for dalteparin 2500 units subcutaneously 2 hours before a scheduled procedure. The medication is available in a 5000 units/0.2 mL prefilled syringe. How many mL should the nurse administer? (Enter numeric value only)
The Correct Answer is ["0.1"]
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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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice B reason: Epoetin alfa is a synthetic form of erythropoietin, a hormone that stimulates the production of red blood cells (RBCs) in the bone marrow. Epoetin alfa is used to treat anemia, or low RBC count, which can be caused by CKD, chemotherapy, HIV infection, or other conditions. Anemia can cause symptoms such as weakness, fatigue, shortness of breath, pale skin, and chest pain. Hemoglobin is the protein in RBCs that carries oxygen throughout the body. The normal range of hemoglobin for males is 14 to 18 g/dL (8.7 to 11.2 mmol/L). Therefore, an increase in hemoglobin from below normal to within normal indicates that epoetin alfa has been effective in increasing RBC production and improving oxygen delivery. The nurse should monitor the client's hemoglobin level regularly and adjust the dose of epoetin alfa as needed.
Choice A reason: Reporting increased energy levels and decreased fatigue is not a finding that best indicates that the medication is effective, but rather a subjective and nonspecific indicator that may or may not reflect the actual improvement in RBC count or hemoglobin level. Energy levels and fatigue can be influenced by many factors, such as sleep quality, nutrition, exercise, stress, mood, and other medical conditions. The nurse should ask the client to report any changes in their symptoms of anemia, but also verify them with objective and reliable measurements, such as hemoglobin level.
Choice C reason: Showing increased consumption of iron-rich foods is not a finding that best indicates that the medication is effective, but rather a supportive measure that can enhance the response to epoetin alfa. Iron is an essential component of hemoglobin and is necessary for RBC production. Iron deficiency can cause or worsen anemia. Therefore, the nurse should advise the client to eat foods that are high in iron, such as red meat, poultry, fish, eggs, beans, leafy green vegetables, nuts, seeds, and fortified cereals.
Choice D reason: Taking concurrent iron therapy without adverse effects is not a finding that best indicates that the medication is effective, but rather a preventive measure that can reduce the risk of iron deficiency and improve the efficacy of epoetin alfa. Iron therapy refers to taking oral or intravenous iron supplements to increase iron levels in the blood. Iron therapy can cause side effects such as nausea, vomiting, constipation, diarrhea, dark stools, metallic taste, or allergic reactions. The nurse should instruct the client on how to take iron therapy safely and monitor for any adverse effects.
Correct Answer is B
Explanation
Choice A reason: Notifying the healthcare provider of the carbamazepine level is not necessary, as 8.4 mg/L (35.6 mcmol/L) is within
the normal range of 4 to 12 mg/L (16.9 to 50.8 mcmol/L). The healthcare provider may adjust
the dose based on other factors such as clinical response, seizure frequency, or adverse effects,
but not based on this level alone.
Choice B reason: Administering the carbamazepine as prescribed is the appropriate action to take, as 8.4 mg/L (35.6 mcmol/L) is within
the normal range of 4 to 12 mg/L (16.9 to 50.8 mcmol/L). The nurse should follow the prescribed
dose and schedule of carbamazepine to maintain a therapeutic level and prevent seizures.
Choice C reason: Assessing the client for side effects of carbamazepine is important, as carbamazepine can cause adverse effects such as drowsiness, dizziness, nausea, rash, or blood dyscrasias. However, this action is not related to the carbamazepine level, as side effects can occur at any level and may not correlate with the serum concentration. The nurse should monitor the client for side effects regardless of the carbamazepine level.
Choice D reason: Withholding this dose of carbamazepine is not appropriate, as 8.4 mg/L (35.6 mcmol/L) is withinthe normal range of 4 to 12 mg/L (16.9 to 50.8 mcmol/L). Withholding the dose may cause a drop in the serum concentration and increase the risk of seizures. The nurse should administer the carbamazepine as prescribed unless instructed otherwise by the healthcare provider.
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