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Free Phlebotomy practice · Updated October 2026

Phlebotomy hand veins, syringes and difficult draws practice questions, with every answer explained

Routine Blood Collections is 28 of the 100 scored items on the NHA CPT exam. Answer 10 exam style questions on hand veins, syringes and difficult draws and see exactly which concepts would cost you points on test day.

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Where the NHA CPT points are100 scored items
Routine Blood Collections
28
Safety and Compliance
26
Patient Preparation
20
Processing
14
Special Collections
12
Source: NHA CPT test plan (2025)You are here ↑
Score 0/0
Q1Hand venipuncture

How should the hand be positioned for a dorsal hand venipuncture?

What these hand veins, syringes and difficult draws questions test

These questions cover hand venipuncture, alternate sites, vein selection, syringe draws and site selection. Each one shows the correct answer and why every other option is wrong, so a miss tells you exactly what to review before the NHA CPT.

Hand venipunctureAlternate sitesVein selectionSyringe drawsSite selectionTroubleshootingHemolysisIV linesVein dilationAftercare

All 10 questions with answers explained

Prefer to read first? Every question from the practice set above, with the correct answer and why each wrong option is wrong.

Q1How should the hand be positioned for a dorsal hand venipuncture?
  1. Slightly flexed downward, with fingers loosely curled
  2. Palm up and fully extended
  3. In a tight fist pointing upward
  4. Hanging off the bed with the wrist bent back

Answer: A. Bending the hand slightly downward with fingers loosely curled stretches the skin and helps anchor the hand veins.

Why not B: Palm up exposes the palm side, not the dorsal veins.

Why not C: A tight upward fist does not anchor the dorsal veins well.

Why not D: Bending the wrist back changes the angle and makes anchoring harder.

Exam tactic: Hand draw: bend it gently down.

Q2Why do many facilities require provider approval before drawing from veins of the leg, ankle or foot?
  1. Blood from these veins is always hemolyzed and must be rejected by the lab on arrival
  2. Tubes do not fill from veins below the waist
  3. Leg and foot veins carry a higher risk of complications such as clots and infection
  4. Leg veins contain only arterial blood

Answer: C. Lower extremity sites carry a higher risk of thrombosis, infection and poor healing, especially in patients with diabetes or poor circulation. Many facilities require provider permission.

Why not A: Hemolysis is not an automatic result of using these veins.

Why not B: Evacuated tubes fill from any vein with adequate flow.

Why not D: Leg veins are veins and carry venous blood.

Exam tactic: Below the waist: get permission.

Q3A patient's antecubital vein feels hard and cordlike and does not refill when pressed. What should the phlebotomist do?
  1. Use it, since it is easy to feel
  2. Insert the needle at a steeper angle
  3. Apply a second tourniquet to soften it
  4. Choose another vein

Answer: D. Hard, cordlike veins are often sclerosed or thrombosed. Blood flow through them is poor, so another site is chosen.

Why not A: Being easy to feel does not make a sclerosed vein usable.

Why not B: A steeper angle does not restore flow in a damaged vein.

Why not C: A second tourniquet does not soften a damaged vein and adds risk.

Exam tactic: Cordlike vein: skip it.

Q4During a syringe transfer, why is the plunger not pushed to force blood into the tube?
  1. It can hemolyze the sample and may pop the stopper
  2. It makes the tube fill with too little blood for the additive in it
  3. It activates the clot activator too early
  4. It changes the color of the stopper

Answer: A. The tube vacuum should pull the blood in. Forcing it through the needle damages red cells and the added pressure can push the stopper off and spray blood.

Why not B: Pushing would tend to overfill, not underfill, the tube.

Why not C: Clot activators work on contact, pushing does not change that.

Why not D: Stopper color is fixed by the manufacturer.

Exam tactic: Let the vacuum work. Hands off the plunger.

Q5A dialysis patient has an arteriovenous fistula in the left arm. The right arm has a usable vein. Where should the draw be done?
  1. In the left arm, below the fistula
  2. In the right arm
  3. Directly from the fistula
  4. In the left hand

Answer: B. An arm with a fistula or graft is never used for venipuncture or a tourniquet, because damage can ruin the patient's dialysis access. The other arm is used.

Why not A: Any puncture or tourniquet on the fistula arm risks damaging the access.

Why not C: Only trained dialysis staff access a fistula, never for routine phlebotomy.

Why not D: The left hand is on the fistula side and still needs a tourniquet on that arm.

Exam tactic: Fistula arm: hands off.

Q6Blood was seen in the tubing of a winged set, but the tube does not fill. What is a reasonable first fix?
  1. Remove the needle and stick the other arm
  2. Shake the tube holder
  3. Try a new tube, since the first may have lost its vacuum
  4. Tighten the tourniquet further

Answer: C. A flash in the tubing shows the needle is in the vein. If the tube does not fill, it may have lost its vacuum, so a new tube is tried.

Why not A: A new puncture is not needed when the needle is clearly in the vein.

Why not B: Shaking the holder can move the needle and does not restore vacuum.

Why not D: Tightening the tourniquet does not restore a lost vacuum.

Exam tactic: Flash but no fill? Swap the tube.

Q7Which practice is most likely to cause a hemolyzed specimen?
  1. Allowing the alcohol to air dry
  2. Drawing blood through a hematoma
  3. Inverting tubes gently
  4. Using a 21 gauge needle for routine tubes

Answer: B. Blood drawn from a hematoma contains damaged cells and is often hemolyzed. The draw should be done at another site.

Why not A: Letting alcohol dry prevents hemolysis.

Why not C: Gentle inversion is correct practice.

Why not D: A 21 gauge needle is standard and is not a cause of hemolysis.

Exam tactic: Hematoma site: hemolysis risk.

Q8A specimen must be drawn below an IV because no other site is available. Who turns off the IV infusion?
  1. The phlebotomist, after checking the IV fluid type on the bag label
  2. The patient
  3. The nurse or other licensed caregiver
  4. A family member

Answer: C. Only the nurse or another licensed caregiver may stop an IV infusion. The phlebotomist asks them to stop it for the required time per policy before the draw.

Why not A: Adjusting IV infusions is outside phlebotomy scope.

Why not B: Patients do not stop their own infusions.

Why not D: Family members must never adjust an IV.

Exam tactic: IV off? Nurse does it.

Q9A patient's veins are hard to find. Which step helps the veins become more prominent?
  1. Have the patient pump the fist hard for a minute
  2. Leave the tourniquet on for five minutes
  3. Apply a warm compress to the site for a few minutes
  4. Slap the arm firmly several times over the site until the vein rises

Answer: C. Warming the site increases blood flow and makes veins easier to see and feel.

Why not A: Vigorous fist pumping can falsely raise potassium.

Why not B: A prolonged tourniquet causes hemoconcentration.

Why not D: Slapping can cause bruising and is painful.

Exam tactic: Warm it, don't pump it.

Q10After needle removal, a patient bends the elbow up tightly to hold the gauze. What should the phlebotomist do?
  1. Allow it, bending is the best way to stop bleeding
  2. Apply a tourniquet above the site
  3. Ask the patient to swing the arm to improve circulation
  4. Have the patient keep the arm straight and apply direct pressure

Answer: D. Bending the elbow can reopen the puncture and lead to a hematoma. The arm stays straight or slightly elevated with direct pressure over the gauze.

Why not A: Bending is a known cause of post-draw hematomas.

Why not B: A tourniquet above the site would increase bleeding into the tissue.

Why not C: Swinging the arm increases bleeding.

Exam tactic: Arm straight, press down.

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More about the NHA CPT

PassPulse is an independent exam preparation tool. We are not affiliated with, endorsed by, or sponsored by the National Healthcareer Association (NHA), the American Society for Clinical Pathology (ASCP), the National Center for Competency Testing (NCCT) or American Medical Technologists (AMT). Exam, credential and product names mentioned on this page are trademarks of their respective owners and are used only to identify the exams described.

These practice questions are written by PassPulse to reflect the published exam content outline. They are not actual exam questions. Questions, answers and explanations may contain errors or be out of date, and they are for exam study only, not for clinical or professional practice: always check facts against the certifying body's official materials, current standards and your employer's policies. Scores and projections on this page are estimates based on a small number of questions and do not predict your result on the real exam. Area weights come from the official outline as of the date shown; always confirm current exam details with the certifying body.
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