The patient has an order for a single dose of ceftriaxone 400 mg IM. The final concentration is 500 mg/1.2 ml. How many milliliters will you administer? (Round to the nearest hundredth.)

Answer and Explanation

The Correct Answer is ["0.96"]

Ordered dose = 400 mg
Available = 500 mg in 1.2 mL

Step 1: Use the formula
Volume to administer = (Ordered dose ÷ Available dose) × Volume available

Step 2: Substitute the values
Volume = (400 ÷ 500) × 1.2

Step 3: Calculate
Volume = 0.8 × 1.2 = 0.96 mL

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Correct Answer is D

Explanation

A. Fatigue is a common and expected change in pregnancy due to increased metabolic demands and hormonal shifts. It is not specific for heart failure.

B. Mild dyspnea on exertion is common in pregnancy because of increased oxygen demand and diaphragmatic elevation. This alone does not indicate heart failure.

C. Peripheral edema is a typical physiological change in pregnancy, especially in the lower extremities, due to increased blood volume and venous pressure. It is usually not concerning unless accompanied by other signs.

D. These findings are not typical of normal pregnancy and may indicate fluid overload and impaired cardiac function, suggesting heart failure. Pulmonary congestion can cause dyspnea, persistent cough, and orthopnea, while generalized edema (especially in the face and hands) is concerning for cardiac or severe renal involvement.

A. Mother Rh-, baby Rh+ B. Mother Rh+, baby Rh- C. Mother Rh+, baby Rh+ D. Mother Rh-, baby Rh-

Correct Answer is A

Explanation

A. Rho(D) immune globulin (RhoGAM) is indicated when an Rh-negative mother gives birth to an Rh-positive infant. This prevents the mother’s immune system from developing antibodies against Rh-positive blood cells, which could cause hemolytic disease of the newborn (HDN) in future pregnancies.

B. An Rh-positive mother already has the D antigen, so she will not form antibodies against an Rh-negative baby. RhoGAM is not needed.

C. The mother is Rh-positive and cannot develop antibodies against Rh-positive fetal blood cells. No RhoGAM is required.

D. Both mother and baby are Rh-negative, so there is no risk of maternal sensitization. RhoGAM is not indicated.

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The patient has an order for a single dose of ceftriaxone 400 mg IM. The final concentration is 500 mg/1.2 ml. How many milliliters will you administer? (Round to the nearest hundredth.)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Which of the following findings in a pregnant client may indicate potential heart failure rather than normal pregnancy changes?

Correct Answer is D

Explanation

Rho immune globulin will be ordered after birth if which situation occurs?

Correct Answer is A

Explanation

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