Nursing Elites

1. A newborn's mother is positive for the hepatitis B surface antigen. Which of the following should the infant receive?

• A. Hepatitis B immune globulin at 1 week followed by hepatitis B vaccine monthly for 6 months
• B. Hepatitis B vaccine monthly until the newborn tests negative for the hepatitis B surface antigen
• C. Hepatitis B immune globulin and hepatitis B vaccine within 12 hr of birth
• D. Hepatitis B vaccine at 24 hr followed by hepatitis B immune globulin every 12 hr for 3 days

Correct answer: C

Rationale: In the scenario where a newborn's mother is positive for hepatitis B surface antigen, the infant should receive both hepatitis B immune globulin and hepatitis B vaccine within 12 hours of birth. This is crucial to provide passive and active immunity against the Hepatitis B virus. Hepatitis B immune globulin provides immediate protection by giving passive immunity, while the vaccine stimulates active immunity in the infant. Administering both within 12 hours of birth is important to prevent vertical transmission of the virus.

2. A client in labor at 40 weeks of gestation has saturated two perineal pads in the past 30 min. The nurse suspects placenta previa. Which of the following is an appropriate nursing action?

• A. Examination to determine cervical status
• B. A magnesium sulfate infusion
• C. Initiation of pushing
• D. Preparation for cesarean birth

Correct answer: D

Rationale: In the scenario described, the client is experiencing heavy vaginal bleeding, which is concerning for placenta previa. The appropriate nursing action in this situation is to prepare for a cesarean birth. Placenta previa is a condition where the placenta partially or completely covers the cervix, which can lead to life-threatening bleeding during labor. It is crucial to avoid vaginal examinations or initiation of pushing as these actions can exacerbate bleeding. A magnesium sulfate infusion is not indicated in the management of placenta previa. Therefore, the priority intervention is to prepare for a cesarean birth to ensure the safety of the mother and the baby.

3. A healthcare professional is reviewing the laboratory values of a client who has respiratory acidosis. Which of the following findings should the healthcare professional expect?

• A. HCO3- 30 mEq/L
• B. PaCO2 50 mm Hg
• C. pH 7.45
• D. Potassium 3.3 mEq/L

Correct answer: B

Rationale: In respiratory acidosis, the primary disturbance is an increase in PaCO2 levels above the normal range of 35-45 mm Hg. Option B, PaCO2 50 mm Hg, indicates an elevated partial pressure of carbon dioxide, which is consistent with respiratory acidosis. Options A, C, and D are not directly indicative of respiratory acidosis. HCO3- (Option A) is more related to metabolic acidosis or alkalosis, pH (Option C) is within the normal range indicating no acid-base imbalance, and potassium (Option D) levels are not specific to respiratory acidosis.

4. A nurse in an antepartum unit is triaging clients. Which of the following clients should the nurse see first?

• A. A client who is at 38 weeks of gestation and reports a cough and fever
• B. A client who has missed a period and reports vaginal spotting
• C. A client who is at 14 weeks of gestation and reports nausea and vomiting
• D. A client who is at 28 weeks of gestation and reports of painless vaginal bleeding

Correct answer: D

Rationale:

5. A client with chronic kidney disease has arterial blood gas values being reviewed by a nurse. Which of the following sets of values should the nurse expect?

• A. pH 7.25, HCO3- 19 mEq/L, PaCO2 30 mm Hg
• B. pH 7.30, HCO3- 26 mEq/L, PaCO2 50 mm Hg
• C. pH 7.50, HCO3- 20 mEq/L, PaCO2 32 mm Hg
• D. pH 7.55, HCO3- 30 mEq/L, PaCO2 31 mm Hg

Correct answer: A

Rationale: In chronic kidney disease, metabolic acidosis is common due to impaired kidney function leading to reduced bicarbonate excretion. The correct values indicating metabolic acidosis in this scenario are a low pH (acidosis), low bicarbonate (HCO3-) level, and low PaCO2 (compensation through respiratory alkalosis). Therefore, the expected values for a client with chronic kidney disease would be pH 7.25, HCO3- 19 mEq/L, PaCO2 30 mm Hg, as depicted in choice A.

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