A nurse is preparing to administer ondansetron 0.15 mg/kg IV to a child who is receiving chemotherapy and weighs 29.4 kg. Available is ondansetron 4 mg/2 mL solution. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["2.2"]
To calculate the dose of ondansetron for a child who is receiving chemotherapy, the nurse needs to use the following formula:
Dose (mL) = (Dose ordered in mg / Dose available in mg) x Volume available in mL
In this case, the dose ordered in mg is 0.15 mg/kg x 29.4 kg, which equals 4.41 mg. The dose available in mg is 4 mg, and the volume available in mL is 2 mL. Therefore, the dose in mL is:
Dose (mL) = (4.41 mg / 4 mg) x 2 mL Dose (mL) = 2.205 mL
The nurse should round the answer to the nearest tenth, so the final answer is 2.2 mL. The nurse should administer 2.2 mL of ondansetron IV to the child who is receiving chemotherapy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Placing the child in the Trendelenburg position is not necessary for tracheostomy care. In fact, this position is generally not recommended for routine tracheostomy care.
B. Sterile technique, not clean technique, should be used when changing the tracheostomy tube to reduce the risk of infection.
C. This is the correct action. Having the child flex his head can help prevent tension on the tracheostomy ties and ensure a secure and comfortable fit.
D. Full-strength hydrogen peroxide is too harsh and can cause irritation to the skin around the stoma. It is recommended to use normal saline or a mild soap and water solution for cleaning.
Correct Answer is D
Explanation
- A: Tighten the screws on the halo device one-quarter turn every 48 hr.
- Rationale: This action is incorrect because the screws on a halo device should not be adjusted by the nurse. The screws are typically set and secured by a healthcare provider, and any adjustments can compromise the integrity of the device and the stability of the cervical spine.
- B: Assess the pin sites for infection once every other day.
- Rationale: While it is important to monitor the pin sites for signs of infection, doing so once every other day may not be sufficient. Pin sites should be assessed at least once per shift to ensure early detection and management of any potential infection.
- C: Encourage flexion and extension of the neck.
- Rationale: This action is contraindicated for a client with a halo vest. The purpose of the halo vest is to immobilize the cervical spine to promote healing. Encouraging neck movement could cause further injury or delay healing.
- D: Reposition the client using a turning sheet.
- Rationale: This is the correct action. Using a turning sheet helps to reposition the client safely and effectively without exerting unnecessary pressure on the cervical spine. It also aids in preventing pressure ulcers and promotes comfort for the client.
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