In mass casualty scenarios, stopping life-threatening limb bleeding as quickly as possible is the top priority. A tourniquet can be applied immediately to an injured extremity to control arterial hemorrhage, without waiting to apply direct pressure first. This approach minimizes blood loss and buys time for more patients to receive care. Direct pressure remains useful and can be applied if feasible, but it should not delay the tourniquet when rapid hemorrhage control is needed. If bleeding continues after applying a tourniquet, reassess and manage per protocol, but do not delay tourniquet use to attempt direct pressure first. Tourniquets are appropriate in the field for severe limb bleeding and are not saved only for hospital arrival, and they are not contraindicated in MCIs.

Understanding a trauma catchment requires mapping the hospital’s position relative to major freeways. Sharp Memorial sits in the San Diego area north of the SR-94 corridor and east of I-805, placing it in the northeast quadrant relative to those highways. Describing its catchment as north of 94 and east of 805 best matches its actual location. Descriptions that place it south of 94 or west of 805 would place it in a different part of the city.

The main idea is that in certain obstetric emergencies, reaching into the vagina with a gloved hand is necessary to relieve a blockage or obstruction and allow a safe delivery to proceed. In a prolapsed umbilical cord, the cord slips ahead of the presenting part and can be compressed as contractions continue. Placing a gloved hand into the vagina to gently elevate and hold the presenting part off the cord keeps blood flow to the baby until delivery or hospital arrival. In a breech birth with an entrapped head, the body or buttocks may be delivered but the head becomes stuck at the vaginal opening. A gloved hand inserted into the vagina can help reposition or elevate the presenting part to create space for the head to pass, often in conjunction with other maneuvers, while maintaining the airway and preparing for rapid transport. The other options involve conditions like postpartum hemorrhage or placenta previa, where this intra-vaginal manual step isn’t the specific intervention described in these EMS protocols.

The main idea is how to safely clear the cervical spine in a pediatric trauma patient using the NECK criteria. NECK stands for N: no altered LOC; E: evidence of obvious injury absent; C: complete spontaneous range of motion without pain; K: kinematic negative. If a child is alert and oriented, shows no signs of neck injury, can move the neck freely without pain, and demonstrates no abnormal movement or instability during assessment, you can clear the neck without imaging. These components work together to ensure reliable assessment: mental status with history, absence of visible injury, pain-free full ROM, and no abnormal kinematics all suggest cervical spine stability. The other options describe factors not part of the standard cervical spine clearance criteria in pediatric protocols.