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A client who weighs 132 lb receives a prescription for lorazepam 44 mcg/kg IV to be administer 20 minutes before a scheduled procedure. The medication is available in 2 mg/mL vial. How many mL should the nurse administer?

(Enter numerical value only. If rounding is required, round to the nearest tenth.)

Answer and Explanation

The Correct Answer is ["1.3"]

Convert pounds to kilograms.

1 pound = 0.453592 kilograms
132 pounds * 0.453592 kg/pound = 59.87 kilograms

Step 2: Calculate the total dose in micrograms.

44 micrograms/kilogram * 59.87 kilograms = 2635.08 micrograms

Step 3: Convert micrograms to milligrams.

1 milligram = 1000 micrograms
2635.08 micrograms / 1000 micrograms/milligram = 2.63508 milligrams

Step 4: Calculate the volume to be administered.

Concentration of lorazepam = 2 milligrams/milliliter
Volume = Dose / Concentration
Volume = 2.63508 milligrams / 2 milligrams/milliliter = 1.31754 milliliters

Therefore, the nurse should administer approximately 1.3 milliliters of the lorazepam solution.

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Free Nursing Study Resources

Correct Answer is ["A","B","C"]

Explanation

Blood pressure 90/62 mm Hg

A blood pressure of 90/62 mm Hg indicates hypotension, which could be indicative of hypovolemia (low blood volume) due to postpartum hemorrhage. Hypotension needs immediate evaluation and intervention to prevent further complications.

Oxygen saturation of 89%

An oxygen saturation of 89% on room air is below the normal range (typically 95-100%). This suggests the client is not adequately oxygenating, which could be due to various reasons such as respiratory compromise or inadequate ventilation. Immediate follow-up is necessary to determine the cause and initiate appropriate interventions.

Fundus rotated to the right

The displacement of the fundus could be due to the presence of a distended bladder pushing the uterus to one side which may increase uterine atony.

A. Increase rate of ventilation. B. Decrease expiratory flow time. C. Increase ventilator tidal volume. D. Decrease expiratory pressure.

Correct Answer is A

Explanation

Rationale

A. The client's pH is low (acidotic), and the PaCO2 is high (respiratory acidosis). Increasing the rate of ventilation (respiratory rate) can help to decrease PaCO2 by increasing alveolar ventilation, thereby helping to correct respiratory acidosis.

B. Expiratory flow time affects the time available for exhalation. While this may affect the overall mechanics of ventilation, it is not directly targeting the primary issue of elevated PaCO2 and acidosis.

C. Increasing tidal volume increases the volume of air delivered with each breath. This can improve ventilation efficiency but may not address the underlying problem of elevated PaCO2 unless it leads to increased minute ventilation.

D. Expiratory pressure is related to positive end-expiratory pressure (PEEP), which helps maintain alveolar recruitment and improve oxygenation. Decreasing expiratory pressure may not directly address the elevated PaCO2 and acidosis.

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Naxlex Comprehensive Predictor Exams

Correct Answer is ["A","B","C"]

Explanation

Correct Answer is A

Explanation

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