ATI RN
ATI Maternal Newborn Proctored Exam
1. A healthcare professional is reviewing the arterial blood gas results for a client in the ICU who has kidney failure and determines the client has respiratory acidosis. Which of the following findings should the healthcare professional expect?
- A. Widened QRS complexes
- B. Hyperactive deep tendon reflexes
- C. Bounding peripheral pulses
- D. Warm, flushed skin
Correct answer: A
Rationale: Respiratory acidosis is characterized by an increase in carbon dioxide levels in the blood, leading to acidosis. This condition can affect the heart's electrical conduction system, resulting in widened QRS complexes on an electrocardiogram (ECG). Hyperactive deep tendon reflexes, bounding peripheral pulses, and warm, flushed skin are not typically associated with respiratory acidosis.
2. A healthcare provider is preparing to administer an injection of Rho (D) immunoglobulin. The provider should understand that the purpose of this injection is to prevent which of the following newborn complications?
- A. Hydrops fetalis
- B. Hypobilirubinemia
- C. Biliary atresia
- D. Transient clotting difficulties
Correct answer: B
Rationale: Rho (D) immunoglobulin is given to Rh-negative individuals to prevent hemolytic disease of the newborn (HDN) caused by Rh incompatibility between the mother and the fetus. If an Rh-negative mother carries an Rh-positive fetus, there is a risk of sensitization during pregnancy or childbirth. Sensitization can lead to the production of antibodies that may attack Rh-positive red blood cells in future pregnancies, potentially causing severe hemolytic disease in the newborn, including complications like hydrops fetalis. Hydrops fetalis is a condition characterized by severe edema and fetal organ enlargement due to severe anemia and heart failure in the fetus.
3. A client who is 4 hours postpartum following a vaginal delivery is being assessed by a nurse. Which of the following findings should the nurse identify as the priority?
- A. Saturated perineal pad in 30 minutes
- B. Deep tendon reflexes 4+
- C. Fundus at the level of the umbilicus
- D. Approximated edges of episiotomy
Correct answer: A
Rationale: In a client who is 4 hours postpartum, a saturated perineal pad within 30 minutes is a priority finding as it may indicate excessive postpartum bleeding (hemorrhage), which requires immediate intervention to prevent further complications such as hypovolemic shock. Deep tendon reflexes being 4+ is within normal limits postpartum. The fundus at the level of the umbilicus is an expected finding at this time frame, indicating proper involution of the uterus. Approximated edges of an episiotomy suggest proper healing.
4. 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.
5. 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.
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