The nurse is caring for a client who has disseminated intravascular coagulation (DIC). The healthcare provider prescribes an infusion of heparin. Based on the protocol, the initial dose is 14 units/kg/hr. The heparin is dispensed at a concentration of 25,000 units/250 ml. The client weighs 79.1 kg. How many mL/hr will the nurse set the Infusion pump? (Round the rate to nearest tenth. Only enter numbers and decimals. Do not enter any letters in your answer.)
The Correct Answer is ["11.074"]
To calculate the infusion rate, we'll use the following formula:
Infusion rate (mL/hr) = Desired dose (units/hr) / Concentration of heparin (units/mL)
First, calculate the desired dose in units/hr:
- 14 units/kg/hr x 79.1 kg = 1107.4 units/hr
Next, calculate the concentration of heparin in the IV bag:
- 25,000 units / 250 mL = 100 units/mL
Finally, plug the values into the formula:
- Infusion rate = 1107.4 units/hr / 100 units/mL = 11.074 mL/hr
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Naxlex Comprehensive Predictor Exams
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Correct Answer is B
Explanation
A. Labrynthitis is an inner ear disorder that causes vertigo, tinnitus, and hearing loss, but it does not typically involve otorrhea (ear discharge) or the sudden resolution of ear pain.
B. A perforated tympanic membrane is characterized by a sudden relief of ear pain when the eardrum ruptures, often accompanied by otorrhea (discharge from the ear). This condition is typically the result of an infection that increases pressure in the middle ear until the eardrum bursts.
C. Meniere disease involves episodes of vertigo, tinnitus, and fluctuating hearing loss, but does not usually present with ear pain followed by discharge.
D. Otitis externa, or swimmer’s ear, involves inflammation of the ear canal with symptoms like pain, itching, and discharge, but does not cause the sudden resolution of pain following the onset of otorrhea.
Correct Answer is A
Explanation
A. Hypovolemic shock is characterized by low blood pressure, pale skin, and abdominal pain due to significant fluid loss or hemorrhage. The client's symptoms, including hypotension and abdominal pain, suggest a reduction in blood volume potentially caused by gastrointestinal bleeding or ulceration, which is consistent with chronic aspirin use.
B. Obstructive shock is due to a physical obstruction of blood flow, such as a pulmonary embolism or cardiac tamponade, which does not directly correlate with the client's presentation of symptoms.
C. Cardiogenic shock results from severe heart failure and is typically accompanied by signs of heart dysfunction, not just low blood pressure and abdominal pain.
D. Septic shock is associated with infection and systemic inflammation, often presenting with fever and other signs of infection, which the client is not exhibiting.
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