A primary health care provider prescribes acetaminophen liquid 450 mg orally every 4 hours PRN for pain. The medication label reads 160 mg/5 mL. The nurse prepares how many milliliters (mL) to administer one dose? Fill in the blank and record your answer to the nearest whole number.
Correct Answer: 14 mL
Rationale: Use the formula for calculating medication dosages. Formula: Desired × Volume / Available = mL per dose. 450 mg × 5 mL / 160 mg = 14 mL.
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A client prescribed lithium carbonate for the treatment of bipolar disorder has a medication blood level of 1.6 mEq/L (1.6 mmol/L). Which assessment question should the nurse ask to determine whether the client is experiencing signs of lithium toxicity associated with this level?
- A. Do you hear ringing in your ears?
- B. Have you noted that your vision is blurred?
- C. Have you fallen recently because you are dizzy?
- D. Have you been experiencing any nausea, vomiting, or diarrhea?
Correct Answer: D
Rationale: Normal lithium levels are between 0.8 to 1.2 mEq/L (0.8 to 1.2 mmol/L). One of the most common early signs of lower level lithium toxicity is gastrointestinal (GI) disturbances such as nausea, vomiting, or diarrhea. The assessment questions in options 1, 2, and 3 are related to the findings in lithium toxicity at higher levels.
The nurse is monitoring a client who was recently prescribed total parenteral nutrition (TPN). Which action should the nurse take when obtaining a fingerstick glucose reading of 425 mg/dL (24.28 mmol/L)?
- A. Stop the TPN.
- B. Administer insulin.
- C. Notify the primary health care provider.
- D. Decrease the flow rate of the TPN.
Correct Answer: C
Rationale: Hyperglycemia is a complication of TPN, and the nurse should report abnormalities to the primary health care provider. Options 1, 2, and 4 are not done without a primary health care provider's prescription.
The nurse is developing a plan of care for an older client diagnosed with type 1 diabetes mellitus who is also experiencing acute gastroenteritis. To maintain food and fluid intake in order to prevent dehydration, which action should the nurse plan to include?
- A. Offering only water until the client is able to tolerate solid foods
- B. Withholding all fluids until vomiting has ceased entirely for at least 4 hours
- C. Encouraging the client to take 8 to 12 ounces of fluid every hour while awake
- D. Maintaining a clear liquid diet for at least 5 days before advancing to solid foods
Correct Answer: C
Rationale: Dehydration needs to be prevented in the client with type 1 diabetes mellitus because of the risk of diabetic ketoacidosis (DKA). Small amounts of fluid may be tolerated, even when vomiting is present. The client should be offered liquids containing both glucose and electrolytes. The diet should be advanced as tolerated and include a minimum of 100 to 150 g of carbohydrates daily.
The nurse reviews the results of a blood chemistry profile for a client who is experiencing late-stage salicylate poisoning and metabolic acidosis. Which serum study should the nurse review for data about the client's acid-base balance?
- A. Sodium
- B. Potassium
- C. Magnesium
- D. Phosphorus
Correct Answer: B
Rationale: A client with late-stage salicylate poisoning is at risk for metabolic acidosis because acetylsalicylic acid increases the client's hydrogen ion (H+) concentration, decreases the pH, and creates a bicarbonate deficit. Hyperkalemia develops as the body attempts to compensate for the influx of H+ by moving H+ into the cell and potassium out of the cell; thus, potassium accumulates in the extracellular space. Clinical manifestations of metabolic acidosis include the clinical indicators of hyperkalemia, including hyperpnea, central nervous system depression, twitching, and seizures. Options 1, 3, and 4 are not primary concerns.
A client admitted to the hospital has been prescribed pyridostigmine. When assessing the client for side effects of the medication, the nurse should ask the client about the presence of which occurrence?
- A. Mouth ulcers
- B. Muscle cramps
- C. Feelings of depression
- D. Unexplained weight gain
Correct Answer: B
Rationale: Pyridostigmine is an acetylcholinesterase inhibitor used to treat myasthenia gravis, a neuromuscular disorder. Muscle cramps and small muscle contractions are side effects and occur as a result of overstimulation of neuromuscular receptors. Mouth ulcers, depression, and weight gain are not associated with this medication.