Nokea
Oral ranitidine 2 mg/kg twice daily is prescribed for the infant weighing 16 lb 8 oz. The medication is supplied as 15 mg/mL. How many milliliters should the nurse instruct the parent to withdraw in the syringe provided with the ranitidine to administer one dose?
Correct Answer: 1
Rationale: Use a proportion formula to calculate the dose. First determine the dose for the child's weight: 16 lb 8 ounces = 16.5 lb/ 2.2 lb/kg = 7.5 kg. Next determine the prescribed dose: 7.5 kg x 2 mg = 15 mg. The medication is supplied in 15 mg per 1 mL. The dose to administer is 1 mL of ranitidine (Zantac).
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The unresponsive client with DM is admitted to the ED with a serum glucose level of 35 mg/dL. Which medication should the nurse plan to administer?
- A. Exenatide
- B. Pramlintide
- C. Miglitol
- D. Glucagon
Correct Answer: D
Rationale: A: Exenatide (Byetta), a synthetic incretin mimetic, is used as an adjunct in type 2 diabetes to decrease blood glucose levels. B: Pramlintide (Symlin) lowers postprandial glucose levels by slowing gastric emptying. C: Miglitol (Glyset), an alpha-glucosidase inhibitor, lowers postprandial serum glucose levels. D: The nurse should plan to administer glucagon (GlucaGen). Glucagon, administered intramuscularly, intravenously, or subcutaneously, is used in unconscious clients with diabetes to reverse severe hypoglycemia from insulin overdose. Normal serum glucose is 70 to 110 mg/dL.
You are caring for a 78-year-old woman who is wondering why she was diagnosed with glaucoma. Although she has several risk factors, which of these is not one of them?
- A. age
- B. blood pressure reading of 143/89
- C. Mexican-American heritage
- D. 20/80 vision
Correct Answer: D
Rationale: Age over 60 and Mexican-American ancestry are both risk factors for glaucoma. Elevated blood pressure also is a risk factor as it can cause optic nerve damage. 20/80 vision, while poor, is not a causal factor for glaucoma.
The client with schizophrenia has a history of nonadherence to the prescribed medication regimen. Injectable antipsychotic agents are being considered for long-term use. Which medications, if prescribed by the HCP, should the nurse question? Select all that apply.
- A. Olanzapine
- B. Ziprasidone
- C. Aripiprazole
- D. Risperidone Consta
- E. Fluphenazine decanoate
Correct Answer: A,B,C
Rationale: Olanzapine and ziprasidone injections are for short-term use, and aripiprazole is not available in injectable form.
The client is admitted to the ED with tachypnea, tachycardia, and hypotension. The client has been taking theophylline for treatment of asthma and erythromycin for an upper respiratory tract infection. Which conclusion and action taken by the nurse is correct?
- A. The client is having an asthma attack; the nurse requests an order for albuterol.
- B. The client is experiencing septicemia; the nurse requests an order for blood cultures.
- C. The client has theophylline toxicity; the nurse requests an order for a serum theophylline level.
- D. The client is allergic to erythromycin; the nurse requests an order for diphenhydramine.
Correct Answer: C
Rationale: A: Symptoms of an asthma attack would include wheezing and other signs of air hunger. B: Additional signs would need to be present to suspect septicemia, such as an elevated temperature and skin flushing. C: Tachypnea, tachycardia, and hypotension are signs of theophylline (Theo-Dur) toxicity. These occur because macrolide antibiotics such as erythromycin inhibit the metabolism of theophylline. Obtaining an order for a theophylline level will expedite the client's treatment. D: Symptoms could suggest an allergic reaction, but epinephrine would be ordered, not diphenhydramine.
The nurse is preparing to administer a pm dose of benztropine to the client with worsening akathisia. The client's medication record lists benztropine 0.5 mg IM q4h pm. The vial contains 1 mg/mL. How many milliliters of the medication should the nurse administer?
Correct Answer: 0.5
Rationale: Calculation: 0.5 mg/ 1 mg/mL = 0.5 mL.