Which of the following interventions are effective for managing back pain in pregnancy? Select all that apply.

Supine hypotensive syndromeoccurs in late pregnancy due to compression of the inferior vena cava, decreased venous return, and reduced cardiac outputwhen the woman lies flat on her back. Normally, venous return maintains stroke volume and cardiac output at 4.5–6.5 L/min in pregnancy, but vena caval obstruction can decrease cardiac output by up to 25–30%. Symptoms include dizziness, pallor, hypotension (systolic <100 mmHg), tachycardia, and nausea. The condition is relieved by positional changes that restore venous return.

Rationale for correct answers

3.Turning the client to a side-lying position, preferably left lateral, relieves pressure on the inferior vena cava and restores venous return, cardiac output, and blood pressure. This is the primary and most immediate management strategy.

Rationale for incorrect answers

1.Elevating the legs may slightly improve venous return but does not resolve vena cava compression if the woman remains supine. It is not the primary management.

2.Administering intravenous fluids does not address the mechanical obstruction caused by the gravid uterus. Fluids may support blood volume but cannot restore venous return while the vena cava is compressed.

4.Encouraging the client to lie flat on her back worsens the condition, as the gravid uterus continues to obstruct vena caval flow, further decreasing cardiac output and exacerbating hypotension.

Take home points

• Supine hypotensive syndrome is due to inferior vena cava compression by the gravid uterus.
• Primary management is left lateral positioning to relieve pressure and restore venous return.
• IV fluids and leg elevation are supportive but ineffective without position change.
• Differentiate from hypovolemic shock, where hypotension is due to blood loss, not vena caval compression.

Heartburn in pregnancyis due to lower esophageal sphincter relaxation, progesterone effect, and gastric compressionby the enlarging uterus. Normal lower esophageal sphincter pressure is about 10–30 mmHg, but in pregnancy it decreases significantly, predisposing to gastroesophageal reflux. Gastric emptying time remains normal, but increased intra-abdominal pressure worsens reflux. Symptoms include burning retrosternal pain, regurgitation, and discomfort after meals or when lying down. Management includes postural modifications, dietary adjustments, and safe antacids if needed.

Rationale for correct answers

2.Elevating the head of the bed during sleep prevents reflux by using gravity to reduce upward flow of gastric contents into the esophagus. This is the most effective conservative strategy for heartburn prevention in pregnancy.

Rationale for incorrect answers

1.Lying down immediately after eating promotes reflux because gastric contents move more easily into the esophagus when supine. It worsens symptoms instead of preventing them.

3.Consuming large meals increases gastric distension and raises intra-abdominal pressure, predisposing to reflux. Smaller, more frequent meals are recommended instead.

4.Eating spicy foods stimulates gastric acid secretion and can irritate the esophagus, worsening heartburn. Avoiding spicy, fatty, and acidic foods helps reduce symptoms.

Take home points

• Heartburn in pregnancy is caused by progesterone-induced sphincter relaxation and uterine compression.
• Elevating the head of the bed is the most effective preventive strategy.
• Avoid lying down after meals, eating large meals, and irritating foods.
• Differentiate from peptic ulcer disease, which presents with localized epigastric pain related to meals.