Phlebotomy · Safety and Compliance · 7 min read
CPR, First Aid and Medical Emergencies
- Identify immediate procedural actions required when a patient experiences cardiac arrest, syncope, or a seizure during venipuncture.
- Describe the proper execution of Basic Life Support, chest compressions, and automated external defibrillator application within a phlebotomist's scope.
- Explain proper first aid responses for excessive post-venipuncture bleeding, suspected arterial puncture, and diabetic emergency signs while coordinating with nursing staff.
Recognizing Arrest and Initiating Basic Life Support (BLS)
A routine blood collection can change suddenly if a patient experiences an acute physiological collapse. If a patient becomes unresponsive during a venipuncture, the phlebotomist must act without hesitation to secure equipment and ensure patient safety. The immediate priority is to release the tourniquet, withdraw the needle, engage the safety device, and call for help. Leaving a needle in an unresponsive patient creates severe risks of vascular trauma and accidental needle-stick injury.
When an individual is found in cardiac or respiratory arrest, activating the facility emergency response system or calling a medical code is required immediately. A phlebotomist trained in Basic Life Support (BLS) must quickly determine whether resuscitation is needed. The rescuer checks responsiveness, then simultaneously checks breathing and a carotid pulse for no more than 10 seconds. If no pulse is detected within 10 seconds, begin CPR; if a pulse is present but the patient is not breathing normally, provide rescue breaths according to BLS training and facility protocol while awaiting the emergency response team.
High-quality adult chest compressions are essential to maintain blood flow to vital organs. Compressions must be delivered at a rate of 100 to 120 compressions per minute, depressing the sternum at least 2 inches (5 centimeters) while avoiding excessive depth beyond 2.4 inches (6 centimeters). Between each compression, the rescuer must allow complete chest recoil to ensure adequate cardiac refill. For a single rescuer performing adult CPR, the compression-to-ventilation ratio is 30 chest compressions followed by 2 rescue breaths. To maintain adequate perfusion, interruptions in chest compressions must be minimized and limited to less than 10 seconds.
During an in-facility code, a phlebotomist who is not performing compressions plays an important supportive role. The phlebotomist assists by clearing the immediate area of hazardous equipment, such as phlebotomy trays or carts, and reporting critical patient events to the responding code team so they understand what occurred immediately before the collapse.
Common mistakes
- Lifting gauze repeatedly to check if a puncture site has stopped bleeding, which tears away early platelet aggregates and restarts bleeding.
- Bending the patient's elbow to hold pressure after venipuncture, which increases the likelihood of hematoma formation.
- Attempting to catch or lift a falling patient alone, which risks severe musculoskeletal injury to both the phlebotomist and the patient.
- Placing objects or fingers into the mouth of a seizing patient, which can cause dental fractures, severe bite injuries, or airway obstruction.
- Offering oral glucose, drinks, or snacks to an unresponsive, stuporous, or seizing patient, creating a severe danger of choking and pulmonary aspiration.
Key points
- If unresponsiveness, syncope, or a seizure occurs during venipuncture, the phlebotomist's immediate priority is to release the tourniquet, withdraw and secure the needle, and summon assistance.
- High-quality adult CPR requires compressions at a rate of 100 to 120 per minute, a depth between 2 and 2.4 inches, full chest recoil, a 30:2 ratio for a single rescuer, and pauses limited to less than 10 seconds.
- AED pads must be placed on a bare, dry chest with medication patches removed using gloves; chest compressions must resume immediately after a shock is delivered.
- During patient falls or syncope, ease the patient to the floor to prevent head trauma, do not move suspected spinal injuries, and avoid using ammonia inhalants.
- During convulsive seizures, protect the patient by padding the head and clearing sharp objects, but never restrain limbs or insert anything into the mouth.
- Phlebotomists do not interpret glucose levels or diagnose conditions; any signs of hypoglycemia or severe hyperglycemia must be escalated to the nurse or supervisor.
- Excessive post-draw bleeding requires continuous direct pressure without lifting the gauze; notify nursing if bleeding exceeds 5 minutes, and apply pressure for at least 10 minutes if an arterial puncture is suspected.
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