The healthcare provider prescribes 15 mg/kg of Streptomycin for an infant weighing 4 pounds. The drug is diluted in 25 ml of D5W to run over 8 hours. How much Streptomycin will the infant receive?

Correct Answer: A

Rationale: To calculate the dose of Streptomycin, we first need to convert the infant's weight from pounds to kg (4 lbs = 1.81 kg). Then, we multiply the weight in kg by the prescribed dose (15 mg/kg) to get the total dose (1.81 kg * 15 mg/kg = 27.15 mg). Since the drug is diluted in 25 ml of D5W, the infant will receive 27.15 mg in 25 ml solution. To find how much Streptomycin the infant actually receives, we need to calculate the amount in 1 ml (27.15 mg / 25 ml = 1.086 mg/ml). Finally, to determine how much the infant will receive over 8 hours, we multiply the concentration by the infusion rate (1.086 mg/ml * 25 ml * 8 hours = 217.2 mg). Therefore, the correct answer is A: 9 mg, as it represents the amount

Correct Answer: A

Rationale: The correct answer is A because the neuromuscular blocker tubocurarine chloride causes muscle paralysis, leading to the extremities being paralyzed. This indicates that the medication is effectively blocking neuromuscular transmission. B: Twitching with peripheral nerve stimulation indicates incomplete blockade. C: Clenching fist upon command indicates preserved muscle strength. D: Glasgow Coma Scale measures level of consciousness, not neuromuscular blockade.

Correct Answer: B

Rationale: The correct answer is B. The nurse should look for an increase in today's LDH compared to the previous one to assess for possible liver damage. Acetaminophen overdose can lead to liver toxicity, which can be indicated by elevated LDH levels. LDH is an enzyme released during liver damage. Checking for LDH levels can help assess the impact of increased acetaminophen doses on the liver. Choices A, C, and D are incorrect: A: Looking at hemoglobin and hematocrit is not directly related to acetaminophen use for joint pain. It does not provide information about liver damage. C: APTT measures blood clotting time and is not directly affected by acetaminophen use for joint pain. It does not provide information about liver damage. D: Serum potassium levels are not typically affected by acetaminophen use for joint pain. It does not provide information about liver damage.

Correct Answer: C

Rationale: The correct answer is C: Notify the healthcare provider if the child complains of ringing in the ears. This is important because ringing in the ears can be a sign of salicylate toxicity, a potential side effect of aspirin use in children with rheumatic fever. It is crucial to monitor for this symptom to prevent serious complications. A: Instructing the parents to hold the aspirin until the child has a tepid sponge bath is not the most important intervention. Managing salicylate toxicity takes precedence over comfort measures. B: Administering the aspirin with at least two ounces of water or juice is a general guideline for medication administration but not the most critical intervention in this scenario. D: Advising the parents to question the child about seeing yellow halos around objects is not directly related to the potential side effects of aspirin in this case. Monitoring for salicylate toxicity through symptoms like ringing in the ears is more crucial.

Correct Answer: D

Rationale: The correct answer is D because central-type obesity with thin extremities is a classic characteristic of Cushing's syndrome due to excess cortisol. This pattern of weight distribution is caused by cortisol's impact on fat metabolism and distribution. A is incorrect because a husky voice and hoarseness are not typical symptoms of Cushing's syndrome. B is incorrect as warm, soft, moist, salmon-colored skin is not a common finding in Cushing's syndrome. C is incorrect because visible swelling of the neck without pain is not a typical sign of Cushing's syndrome.