Ampicillin 350 mg IM daily is ordered for your patient. After reconstitution with 3.5 ml of sterile water, the vial of Ampicillin contains a total of 500 mg/ml. How many milliliters will your patient receive per day?
The Correct Answer is ["0.7"]
Step 1: Identify the ordered dose.
Ordered dose = 350 mg
Step 2: Identify the concentration of the medication.
Available concentration = 500 mg per 1 mL
Step 3: Use the formula.
Amount to give (mL) = Ordered dose ÷ Concentration
350 mg ÷ 500 mg/mL = 0.7 mL
Answer: 0.7 mL per day
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Rationale:
A. Inserting an oral airway is not the most appropriate intervention in this situation. In a trauma patient with a possible cervical spine injury, placing an oral airway without strict spinal precautions could worsen spinal damage. In addition, oral airways are generally reserved for patients who are unconscious and lack a gag reflex; this patient is actively vomiting and may still have protective airway reflexes.
B. Offering an emesis basin does not address the primary concern of airway protection. In a trauma patient with suspected intoxication and possible head injury, the risk of aspiration is high, and simply measuring emesis does not prevent airway compromise.
C. Preparing to suction the oropharynx while maintaining cervical spine immobilization is the most appropriate intervention. Vomiting poses an immediate risk of airway obstruction and aspiration. Because the patient experienced a traumatic fall, cervical spine injury must be assumed until ruled out. Suctioning clears vomitus from the airway while spinal precautions protect against further injury, addressing the highest priority in emergency care.
D. Sending emesis to the laboratory for blood alcohol analysis is not a priority during the acute phase of trauma management. Airway protection and spinal stabilization take precedence over diagnostic testing.
Correct Answer is D
Explanation
Rationale:
A. Knowing a patient is diabetic is important for overall care and monitoring for complications like delayed wound healing or hypoglycemia, but it is not the most urgent factor in assessing immediate injury.
B. Information about the amount of blood and bandages provides context but does not specify the mechanism of injury or internal risk, which is critical in trauma assessment.
C. A contaminated stick increases the risk for infection, but infection is a delayed concern compared to the potential for internal bleeding or organ injury from the stick penetrating the abdomen.
D. The fact that the patient pulled the stick out himself is the most critical information. Removal of an impaled object in the field or before proper medical evaluation can lead to sudden hemorrhage, organ damage, or shock. This comment indicates a high risk of ongoing internal bleeding, which requires immediate assessment and intervention.
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