HESI MATERNITY OB EXAM VERSION 3 2026/2027 | Latest
Version | All 55 Questions & Correct Answers | Already
Graded A+ (Score 1292) | Pass Guaranteed
[Section 1: Antepartum Assessment & High-Risk Conditions (Q1-14)]
Q1. A primigravida at 32 weeks gestation presents with a blood pressure of 162/104
mmHg, 3+ proteinuria on dipstick, and reports a severe headache and visual
disturbances. The nurse recognizes these findings as consistent with:
A. Mild gestational hypertension requiring outpatient monitoring
B. Preeclampsia with severe features requiring immediate hospitalization and
magnesium sulfate therapy
C. Chronic hypertension with superimposed preeclampsia managed with oral
antihypertensives only
D. Physiologic changes of pregnancy requiring reassurance
Correct Answer: B. Preeclampsia with severe features requiring immediate
hospitalization and magnesium sulfate therapy [CORRECT]
Rationale: BP ≥160/110 with proteinuria plus neurological symptoms (headache, visual
changes) meets criteria for severe features per ACOG; immediate magnesium sulfate
for seizure prophylaxis is indicated. A understates the severity, C requires chronic
hypertension history, and D is dangerous dismissal.
Correct Answer: B
Q2. A client with preeclampsia with severe features is receiving magnesium sulfate. The
nurse must monitor for early signs of magnesium toxicity. Which assessment finding
indicates early toxicity?
A. Respiratory rate of 10 breaths per minute
,B. Absence of deep tendon reflexes (DTRs)
C. Urine output of 25 mL/hour
D. Decreased level of consciousness
Correct Answer: B. Absence of deep tendon reflexes (DTRs) [CORRECT]
Rationale: Loss of DTRs is the earliest sign of magnesium toxicity (serum level 8-10
mEq/L); respiratory depression and decreased LOC occur at higher levels. A and C
indicate toxicity but at later stages, and D is a late manifestation.
Correct Answer: B
Q3. A client receiving magnesium sulfate has a respiratory rate of 12 breaths per
minute, absent DTRs, and urine output of 20 mL/hour over the past hour. The nurse's
priority action is to:
A. Continue the magnesium infusion and increase the IV fluid rate
B. Stop the magnesium infusion immediately, notify the provider, and prepare calcium
gluconate
C. Administer a loading dose of magnesium sulfate to achieve therapeutic levels
D. Encourage the client to take deep breaths and reassess in 30 minutes
Correct Answer: B. Stop the magnesium infusion immediately, notify the provider, and
prepare calcium gluconate [CORRECT]
Rationale: Absent DTRs with respiratory depression (<12) and oliguria constitute
magnesium toxicity requiring immediate discontinuation and calcium gluconate as the
antidote. A worsens toxicity, C is fatal, and D delays critical intervention.
Correct Answer: B
Q4. A client with HELLP syndrome has laboratory values showing hemoglobin 9.2 g/dL,
platelets 68,000/mm³, LDH 720 U/L, and AST 180 U/L. The nurse understands that the
"LP" in HELLP refers to:
, A. Low platelets and elevated liver enzymes
B. Low protein and low potassium
C. Lactic acidosis and prolonged prothrombin time
D. Leukocytosis and proteinuria
Correct Answer: A. Low platelets and elevated liver enzymes [CORRECT]
Rationale: HELLP = Hemolysis, Elevated Liver enzymes, Low Platelets; this client's
thrombocytopenia and elevated AST/LDH confirm the diagnosis. B, C, and D describe
unrelated laboratory findings.
Correct Answer: A
Q5. A 28-year-old G2P1 at 24 weeks gestation is diagnosed with gestational diabetes.
Her fasting glucose is 98 mg/dL and 1-hour postprandial glucose is 152 mg/dL. The
nurse understands that target glucose levels for gestational diabetes are:
A. Fasting <126 mg/dL and 1-hour postprandial <180 mg/dL
B. Fasting <95 mg/dL and 1-hour postprandial <140 mg/dL
C. Fasting <100 mg/dL and 2-hour postprandial <120 mg/dL
D. Fasting <90 mg/dL and 1-hour postprandial <130 mg/dL
Correct Answer: B. Fasting <95 mg/dL and 1-hour postprandial <140 mg/dL [CORRECT]
Rationale: ACOG targets for gestational diabetes are fasting <95 mg/dL, 1-hour
postprandial <140 mg/dL, or 2-hour postprandial <120 mg/dL. A describes type 2
diabetes targets, C and D are stricter than standard guidelines.
Correct Answer: B
Q6. A client with gestational diabetes at 36 weeks is measuring 42 cm fundal height.
Ultrasound estimates fetal weight at 4,500 grams. The nurse anticipates the provider
will discuss:
Version | All 55 Questions & Correct Answers | Already
Graded A+ (Score 1292) | Pass Guaranteed
[Section 1: Antepartum Assessment & High-Risk Conditions (Q1-14)]
Q1. A primigravida at 32 weeks gestation presents with a blood pressure of 162/104
mmHg, 3+ proteinuria on dipstick, and reports a severe headache and visual
disturbances. The nurse recognizes these findings as consistent with:
A. Mild gestational hypertension requiring outpatient monitoring
B. Preeclampsia with severe features requiring immediate hospitalization and
magnesium sulfate therapy
C. Chronic hypertension with superimposed preeclampsia managed with oral
antihypertensives only
D. Physiologic changes of pregnancy requiring reassurance
Correct Answer: B. Preeclampsia with severe features requiring immediate
hospitalization and magnesium sulfate therapy [CORRECT]
Rationale: BP ≥160/110 with proteinuria plus neurological symptoms (headache, visual
changes) meets criteria for severe features per ACOG; immediate magnesium sulfate
for seizure prophylaxis is indicated. A understates the severity, C requires chronic
hypertension history, and D is dangerous dismissal.
Correct Answer: B
Q2. A client with preeclampsia with severe features is receiving magnesium sulfate. The
nurse must monitor for early signs of magnesium toxicity. Which assessment finding
indicates early toxicity?
A. Respiratory rate of 10 breaths per minute
,B. Absence of deep tendon reflexes (DTRs)
C. Urine output of 25 mL/hour
D. Decreased level of consciousness
Correct Answer: B. Absence of deep tendon reflexes (DTRs) [CORRECT]
Rationale: Loss of DTRs is the earliest sign of magnesium toxicity (serum level 8-10
mEq/L); respiratory depression and decreased LOC occur at higher levels. A and C
indicate toxicity but at later stages, and D is a late manifestation.
Correct Answer: B
Q3. A client receiving magnesium sulfate has a respiratory rate of 12 breaths per
minute, absent DTRs, and urine output of 20 mL/hour over the past hour. The nurse's
priority action is to:
A. Continue the magnesium infusion and increase the IV fluid rate
B. Stop the magnesium infusion immediately, notify the provider, and prepare calcium
gluconate
C. Administer a loading dose of magnesium sulfate to achieve therapeutic levels
D. Encourage the client to take deep breaths and reassess in 30 minutes
Correct Answer: B. Stop the magnesium infusion immediately, notify the provider, and
prepare calcium gluconate [CORRECT]
Rationale: Absent DTRs with respiratory depression (<12) and oliguria constitute
magnesium toxicity requiring immediate discontinuation and calcium gluconate as the
antidote. A worsens toxicity, C is fatal, and D delays critical intervention.
Correct Answer: B
Q4. A client with HELLP syndrome has laboratory values showing hemoglobin 9.2 g/dL,
platelets 68,000/mm³, LDH 720 U/L, and AST 180 U/L. The nurse understands that the
"LP" in HELLP refers to:
, A. Low platelets and elevated liver enzymes
B. Low protein and low potassium
C. Lactic acidosis and prolonged prothrombin time
D. Leukocytosis and proteinuria
Correct Answer: A. Low platelets and elevated liver enzymes [CORRECT]
Rationale: HELLP = Hemolysis, Elevated Liver enzymes, Low Platelets; this client's
thrombocytopenia and elevated AST/LDH confirm the diagnosis. B, C, and D describe
unrelated laboratory findings.
Correct Answer: A
Q5. A 28-year-old G2P1 at 24 weeks gestation is diagnosed with gestational diabetes.
Her fasting glucose is 98 mg/dL and 1-hour postprandial glucose is 152 mg/dL. The
nurse understands that target glucose levels for gestational diabetes are:
A. Fasting <126 mg/dL and 1-hour postprandial <180 mg/dL
B. Fasting <95 mg/dL and 1-hour postprandial <140 mg/dL
C. Fasting <100 mg/dL and 2-hour postprandial <120 mg/dL
D. Fasting <90 mg/dL and 1-hour postprandial <130 mg/dL
Correct Answer: B. Fasting <95 mg/dL and 1-hour postprandial <140 mg/dL [CORRECT]
Rationale: ACOG targets for gestational diabetes are fasting <95 mg/dL, 1-hour
postprandial <140 mg/dL, or 2-hour postprandial <120 mg/dL. A describes type 2
diabetes targets, C and D are stricter than standard guidelines.
Correct Answer: B
Q6. A client with gestational diabetes at 36 weeks is measuring 42 cm fundal height.
Ultrasound estimates fetal weight at 4,500 grams. The nurse anticipates the provider
will discuss:
