In abruptio placentae, which of the following clinical findings indicates concealed hemorrhage?

Explanation

## Clinical Classification of Abruptio Placentae ### Revealed vs. Concealed Hemorrhage | Feature | Revealed APH | Concealed APH | |---|---|---| | Vaginal bleeding | Visible, profuse | Absent or minimal | | Uterine tenderness | Mild to moderate | Severe, disproportionate | | Uterine rigidity | Mild | Marked ("board-like") | | Maternal shock | May be absent | Often present early | | Blood loss estimation | Visible | Underestimated | | Fetal distress | Variable | Often severe | | Maternal mortality | 5% | 10–20% | **Key Point:** Concealed hemorrhage occurs when blood accumulates behind the placenta within the uterus. The absence of visible bleeding masks the severity of maternal blood loss, leading to delayed recognition and shock. ### Clinical Diagnosis of Concealed APH **High-Yield:** The cardinal sign of concealed abruptio placentae is **uterine tenderness and rigidity that is DISPROPORTIONATE to the amount of visible vaginal bleeding**. This discrepancy is the diagnostic clue. **Mnemonic: CONCEALED APH = "Hidden Hemorrhage"** - **C**oncealed bleeding (no visible vaginal loss) - **O**ver-distended uterus (blood trapped behind placenta) - **N**o visible explanation for shock - **C**ritical: Uterine rigidity > vaginal bleeding - **E**arly maternal shock - **A**cute fetal distress - **L**arge retroplacental clot - **E**mergency delivery required - **D**isseminated intravascular coagulation (DIC) risk **Clinical Pearl:** A patient with severe uterine tenderness, rigidity, and signs of shock but minimal or absent vaginal bleeding should raise suspicion for concealed abruptio placentae. This is a obstetric emergency requiring immediate intervention. ### Why This Matters ConcealedAPH is more dangerous than revealed APH because: 1. Blood loss is underestimated 2. Maternal shock develops rapidly 3. Fetal compromise is severe 4. DIC risk is higher 5. Maternal mortality is 2–4× higher