For problems involving adult patients, the answer will be rounded to the nearest tenth. Although some IV pumps do not allow calibration to the tenth or hundredth, for the purpose of this exam, IV rate calculations will be rounded to the nearest whole drop (gt/min) or to the nearest whole number IV (ml/hr). To promote safety, a zero must be placed to the left of the decimal point in answers that are less than one. No zero is allowed to the right of the decimal point in answers that are whole numbers. For example, 0.5 mg must be answered as 0.5 mg and 5.0 mg must be answered as 5 mg.
The physician orders: Magnesium 4 gms loading dose to infuse over 30 minutes at 0500. Then infuse a maintenance dose of 1 gram /hr. The pharmacy sends 80 Gms in 1000 mL of LR. What would the nurse set the pump for the loading dose at 5 Am? Be sure to enter the number AND the unit of measurement (mL). Partial credit will not be given.
The Correct Answer is ["200"]
To find the loading dose rate, we need to use the formula:
Rate (mL/hr) = Dose (g) x Volume (mL) / Time (hr) x Concentration (g)
Plugging in the given values, we get:
Rate (mL/hr) = 4 g x 1000 mL / 0.5 hr x 80 g
Simplifying, we get:
Rate (mL/hr) = 100 g/mL / 40 g/hr
Rate (mL/hr) = 2.5 mL/g
Multiplying by 1000, we get:
Rate (mL/hr) = 2500 mL/g x g/hr
Canceling out the units of g, we get:
Rate (mL/hr) = 2500 mL/hr
Rounding to the nearest whole number, we get:
Rate (mL/hr) = 200 mL/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
c. "This is expected because of the way iron is broken down during digestion."
The client's stools are black because of the iron supplements, which can cause a harmless change in the color and consistency of the stools. This is due to the oxidation of iron in the gastrointestinal tract, which produces a black pigment called ferrous sulfide. This is not a sign of bleeding or infection and does not require further evaluation or treatment. The nurse should reassure the client that this is a normal side effect of iron supplements and advise her to continue taking them as prescribed.
The other responses are not appropriate and may cause unnecessary anxiety or inconvenience for the client.
The nurse should not ask the client what else she has been eating, as this implies that her diet may be causing her stools to be black. This may confuse or offend the client, who may think that the nurse is questioning her nutritional choices or blaming her for her condition.
The nurse should not tell the client to go to the emergency room, as this suggests that her stools are black because of a serious problem that needs immediate atention. This may frighten or alarm the client, who may think that she or her baby are in danger.
d. The nurse should not tell the client to come to the office, as this indicates that her stools are black because of an abnormal finding that needs further investigation. This may worry or inconvenience the client, who may think that she has a complication or infection that requires testing or treatment.
Correct Answer is C
No explanation
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