Nursing Elites

1. When reviewing the arterial blood gas values for a client, a nurse notes a pH of 7.32, PaCO2 of 48 mm Hg, and HCO3 of 23 mEq/L. What does this indicate about the acid-base balance?

• A. Respiratory acidosis
• B. Respiratory alkalosis
• C. Metabolic acidosis
• D. Metabolic alkalosis

Correct answer: A

Rationale: The given values suggest respiratory acidosis. In respiratory acidosis, the pH is low (<7.35), PaCO2 is high (>45 mm Hg), and the HCO3 is normal or slightly elevated. In this scenario, the low pH (7.32) and high PaCO2 (48 mm Hg) indicate respiratory acidosis, where there is an excess of carbon dioxide in the blood, leading to acidification of the body fluids.

2. A client with severe preeclampsia is receiving magnesium sulfate IV at 2 g/hr. Which of the following findings indicates that it is safe to continue the infusion?

• A. Diminished deep-tendon reflexes
• B. Respiratory rate of 16/min
• C. Urine output of 50 mL in 4 hours
• D. Heart rate of 56/min

Correct answer: B

Rationale: A respiratory rate of 16/min within the normal range is an essential parameter to monitor when administering magnesium sulfate, as respiratory depression is a potential adverse effect. Diminished deep-tendon reflexes may indicate magnesium toxicity, warranting immediate intervention. A urine output of 50 mL in 4 hours is below the expected amount, suggesting decreased kidney perfusion, which can be exacerbated by magnesium sulfate. A heart rate of 56/min is bradycardic and may indicate magnesium toxicity, requiring assessment and possible discontinuation of the infusion.

3. 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:

4. A healthcare provider in the emergency department is caring for a client who comes to the emergency department reporting severe abdominal pain in the left lower quadrant. The provider suspects a ruptured ectopic pregnancy. Which of the following signs indicates to the provider the presence of intra-abdominal bleeding?

• A. Chvostek's sign
• B. Cullen's sign
• C. Chadwick's sign
• D. Goodell's sign

Correct answer: B

Rationale: Cullen's sign is the presence of periumbilical ecchymosis indicating intra-abdominal bleeding, which can be associated with a ruptured ectopic pregnancy. Chvostek's sign is a facial spasm related to hypocalcemia. Chadwick's sign is a bluish discoloration of the cervix, vagina, and labia during early pregnancy. Goodell's sign is a softening of the cervix in early pregnancy.

5. 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.

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