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10 free Paramedic practice questions: Ambulance Operations and Equipment Readiness

These are real questions from the same bank the app draws from. Each one is written to the NREMT Paramedic content specifications and kept inside the Paramedic scope of practice. Pick an answer and you get the full rationale, including why the other three options are wrong.

Work through all 10, then move on to the next topic. When you want the full picture, the free Paramedic diagnostic covers every topic in one sitting. No account needed for any of it.

Question 1 of 10

A paramedic is checking the airway equipment carried on the ambulance at 1900. The battery-powered portable suction unit runs and holds a charge. Which additional device allows suctioning to continue if that unit loses power during a call?

Show the answer and rationale

Correct answer · A manually operated suction device

Suction is one of the few interventions with no workaround when the equipment quits, so ambulances carry a hand-powered unit that needs no battery or vehicle power. Checking that the backup is present and functional is part of the same equipment check that covers the powered unit. The distinction that matters is between a device that generates vacuum and the parts that only carry or direct it.

Why the others are wrong

A rigid pharyngeal suction tip: the delivery end of the suction system. It doesn't generate vacuum on its own and is useless if there's no power source driving it.

A large-bore suction catheter: also just a delivery component, not a source of vacuum. It depends on a working powered or manual unit behind it.

A spare collection canister and tubing: A spare canister and tubing are parts that carry and collect what's suctioned. They don't generate suction themselves if the powered unit fails.

Question 2 of 10

A paramedic is placing a portable oxygen cylinder in service at 0715. When the cylinder valve is opened, a loud hiss comes from the connection between the regulator and the cylinder valve, and the gauge pressure begins to fall. What should the paramedic do?

Show the answer and rationale

Correct answer · Close the valve and replace the sealing gasket

A leak at the yoke means the seal between the regulator and the valve outlet is not intact, and that seal is made by a small gasket that flattens, tears, or falls out with repeated cylinder changes. The fix is to close the valve, bleed the pressure, fit an intact gasket, and hand-tighten the yoke, then reopen and confirm the leak is gone. The failed approaches all try to force a seal the gasket is supposed to make, and two of them add a fire risk to a fitting carrying oxygen at high pressure. Oxygen supports combustion, so any petroleum product at a pressurized oxygen fitting can ignite.

Why the others are wrong

Tighten the yoke screw with an adjustable wrench: Tightening the yoke screw with an adjustable wrench tries to force a seal the gasket is supposed to make: over-tightening a fitting with a bad or missing gasket doesn't fix the actual seal problem.

Apply a thin film of lubricant to the fitting: Applying a thin film of lubricant to the fitting is dangerous: oxygen supports combustion, and any petroleum-based lubricant at a pressurized oxygen fitting adds a fire risk rather than fixing the leak.

Wrap the connection with waterproof tape: Wrapping the connection with waterproof tape doesn't restore an actual seal at the valve outlet and adds another fire risk at a fitting carrying pressurized oxygen.

Question 3 of 10

During the morning equipment check, a paramedic verifies that the portable glucometer's test strips expired two months ago. The container was opened at the time of expiration and has been stored in the ambulance. The paramedic may need to assess blood glucose on several patients during the shift. What is the most appropriate action?

Show the answer and rationale

Correct answer · Remove the expired test strips from service and replace them with a new, unexpired container

Test strips have a specified expiration date beyond which their chemical reagents degrade and accuracy can no longer be assured. Expired strips should be removed from service immediately and replaced with unexpired strips to ensure reliable blood glucose measurement. Using expired strips risks false-normal or false-low results, which could delay recognition of hypoglycemia and appropriate treatment.

Why the others are wrong

Use the expired strips because they are stored in a sealed container: Even in a sealed container, the chemical reagents in test strips deteriorate over time after the expiration date, compromising accuracy regardless of storage method.

Try the expired strips; if the result is abnormal, recheck per medical control guidance: Attempting a check with expired strips and treating based on the result risks missing true hypoglycemia if the strips give a falsely normal reading.

Use the expired strips only for screening; if they show normal glucose, proceed without further assessment: Using expired strips even as a screening tool is unreliable; a false-normal result could delay recognition and treatment of life-threatening hypoglycemia.

Question 4 of 10

A paramedic is completing the daily check of the automated external defibrillator at 0645. The defibrillator powers on and completes its self-test without an error. The battery installed in the unit is fully charged and its printed expiration date is 8 months away. Two sets of electrodes are sealed in their packages with valid dates, and the charger is plugged in and operating. The spare battery in the carry case is fully charged, but the expiration date printed on it passed 3 weeks ago. Which action is most appropriate?

Show the answer and rationale

Correct answer · Exchange the spare battery for one that is within its date

Every element of this check passes except one, and the reasoning is in separating what each element actually proves. The self-test proves the unit and its installed battery work now. The charger and the charge indicators prove the batteries hold energy. Neither of those reads the printed expiration date, and the checklist for a defibrillator requires a valid expiration date on both batteries, not only on the one in the unit. Because the spare exists specifically to be installed when the first battery fails, a spare that is past its date leaves the unit with no dependable second battery, and a battery that does not work is the recognized cause of a defibrillator failing to deliver a shock. The correcting action is to exchange the spare for one within its date before the unit goes in service.

Why the others are wrong

Install the spare in the unit and charge the battery removed: This is the misconception that an out-of-date battery should be used up first while it still holds a charge. Rotating batteries on a schedule is a real practice, but it moves current batteries into service, not expired ones. The question states the installed battery is fully charged with 8 months left, so this swap takes a good battery out of the unit and puts an out-of-date one in.

Record the date on the check sheet and repeat the self-test: This is the misconception that a passing self-test clears any battery finding. The self-test reports on the battery presently installed and does not read a printed date on a spare sitting in the case, and the question states the self-test has already run without an error, so repeating it produces the same result and leaves the deficiency in place.

Keep the spare and recheck its charge at the next shift check: This is the misconception that expiration is a charge problem that will show itself on the charger. The question states the spare is fully charged, so charge is not the finding; the date is. Failure to deliver a shock because of a battery is the recognized failure mode, and a battery past its date is not made current by holding a charge for another shift.

Question 5 of 10

During the shift equipment check, a paramedic tests the portable suction unit. The unit was left on its charger overnight and the battery indicator reads full. With the unit running and the tubing clamped, the vacuum gauge rises to 180 mm Hg and stops. The collection canister is empty, and the tubing is wide-bore and free of cracks or kinks. Which action is most appropriate?

Show the answer and rationale

Correct answer · Recheck the assembly of all its parts, then retest

The standard a suction unit has to meet is a vacuum of more than 300 mm Hg with the tubing clamped, so 180 mm Hg is a failure and not simply a low-normal reading. Working out what to do requires ruling out the three things that most often explain it. Power is ruled out because the unit charged overnight, the indicator reads full, and the motor runs. Test technique is ruled out because the reading was taken the standard way, with the tubing clamped. The tubing itself is ruled out because it is wide-bore and free of cracks or kinks. What remains is the assembly, since a suction system builds vacuum only when every joint between the canister, its lid, the yoke, and the tubing seals; the first step in operating the unit is to check it for proper assembly of all its parts. Rechecking the assembly and retesting addresses the leak that the numbers describe.

Why the others are wrong

Replace the battery, then repeat the vacuum test: This is the misconception that carries the defibrillator rule across to the suction unit, where a dead battery is the usual culprit. The question states the unit charged overnight and the battery indicator reads full, and a unit whose motor runs is receiving power, so a weak battery does not explain a gauge that climbs to 180 mm Hg and stalls.

Read the gauge again with the tubing unclamped: This is the misconception that clamping the tubing holds the reading down and that the true vacuum is read with the line open. The standard is written the other way: the unit is tested with the tubing clamped, because an open line cannot build vacuum at all. Unclamping produces a lower reading, not a truer one.

Attach a rigid tonsil-tip catheter and retest: This is the misconception that the vacuum specification is measured through the catheter that will actually be used. Adding a rigid tip narrows the path and lowers the reading further, and the question states the test is already being run the standard way, with the unit running and the tubing clamped.

Question 6 of 10

During the shift check, a paramedic finds the adult traction splint missing from the ambulance. The station storeroom holds a traction splint of a different model that came from a decommissioned unit. No one on the crew has been instructed in its use, and the service's medical director has not approved that model. The unit is otherwise complete and is due to go in service in 20 minutes. Which action is most appropriate?

Show the answer and rationale

Correct answer · Document the missing splint and request an approved replacement

The tempting move is to fill the hole in the inventory, because a unit that goes in service without a traction splint has a real gap. The standard for putting equipment on an ambulance sets two conditions and both have to be met: proper instruction must be given on the device's use and care, and the medical director must approve it. The storeroom splint fails both, which is why every option that puts it on the unit fails no matter what is added around it, including the option that supplies crew practice, since practice does not supply the medical director's approval. The deficiency is handled the way deficiencies are handled at the shift check: a written checklist documents needed repairs or replacement of equipment and supplies, and an approved replacement is requested through the service. Documenting the shortfall reports the gap to the people who can close it correctly instead of closing it with equipment nobody is cleared to use.

Why the others are wrong

Place the storeroom splint on the unit and read its instructions en route: This is the misconception that the manufacturer's instructions substitute for training on the device. Instruction in a device's use and care is required before it goes on an ambulance, not while the crew is responding to the call that needs it, and reading directions en route is the situation the requirement exists to prevent.

Place the storeroom splint on the unit after the crew practices with it: This is the misconception that hands-on familiarization is the whole requirement. Practice satisfies the instruction half, but approval by the medical director is a separate and additional condition, and the question states the medical director has not approved that model, so the splint is still not eligible to be carried.

Place the storeroom splint on the unit until the missing one is returned: This is the misconception that a temporary placement is exempt from the requirement. Nothing in the standard makes the condition depend on how long the equipment stays aboard; a device the crew has not been instructed in and the medical director has not approved is not made acceptable by labeling it an interim substitute.

Question 7 of 10

A paramedic is checking the spare portable oxygen cylinders carried on the ambulance. One aluminum cylinder is labeled for medical oxygen, its plastic valve seal was intact until the paramedic removed it, and the regulator gauge reads 2,000 psi once the regulator is attached. The month and year stamped into the collar show that the cylinder was last tested 6 years ago. Which action is most appropriate?

Show the answer and rationale

Correct answer · Remove it from service and report it for retesting

Three separate facts are given about this cylinder and they check different things. The medical oxygen label confirms the contents, the intact plastic valve seal confirms it has not been opened since it was filled, and the gauge confirms how much oxygen is inside. None of those addresses the letters and numbers stamped into the collar, where the month and year record when the cylinder was last tested. Aluminum cylinders are generally tested every 5 years and composite cylinders every 3 years, so a cylinder last tested 6 years ago is overdue under either interval and its condition is no longer established, whatever the gauge reads. The cylinder comes off the unit and goes back for testing, and the shortfall is reported on the written checklist so a replacement is obtained before the unit is placed in service.

Why the others are wrong

Place it in service, since the gauge reads full: This is the misconception that a full gauge is the whole readiness check for a cylinder. Pressure describes how much oxygen is inside; the collar stamp describes when the cylinder itself was last tested, and those are separate questions. A cylinder can read 2,000 psi and still be overdue for the test that establishes it is safe to hold that pressure.

Crack the valve to confirm it holds pressure: This is the misconception that a field pressure check substitutes for the periodic test. Cracking the valve is a step for clearing debris from the opening before the regulator is attached, and holding pressure for a few seconds on the station floor is not the test that the collar stamp records.

Keep it as the backup and use the newer one: This is the misconception that an overdue cylinder is acceptable as long as it is not the first one reached for. The backup cylinder is the one carried for the second patient or the long transport, so demoting it to backup does not take it out of use; it just delays the moment it is relied on.

Question 8 of 10

An ambulance returns from a refit with its cabinets rearranged, and a paramedic is restowing equipment before the unit goes in service. The portable suction unit, the spare oropharyngeal airways, the blood pressure cuffs, and the bleeding control dressings all have to be put away. The attendant seat is at the head of the primary stretcher. The cabinet at the head of the stretcher and the cabinet beside the stretcher each hold two of the four items. Which arrangement is most appropriate?

Show the answer and rationale

Correct answer · Suction unit and airways at the head; blood pressure and dressings at the side

Equipment is stowed by how urgently and how often it is used, and equipment needed for a single critical intervention is grouped in one place so the crew is not gathering pieces of it from several cabinets. Airway management, artificial ventilation, and oxygen delivery equipment is packaged together within easy reach of the head of the primary stretcher, because that is where the crew sits and works when managing an airway; the portable suction unit and the oropharyngeal airways both belong to that group. Items for cardiac care, control of external bleeding, and monitoring blood pressure are placed at the side of the stretcher, where those interventions are actually performed. The reasoning runs in three steps: recognize which functional group each item belongs to, match each group to the position from which its intervention is delivered, and keep each group intact rather than remixing items across cabinets.

Why the others are wrong

Blood pressure and dressings at the head; suction unit and airways at the side: This is the misconception that the head of the stretcher is simply the most valuable storage space and should hold whatever the candidate ranks as most important. The placement rule is based on where each intervention is performed: bleeding control and blood pressure monitoring are done from the side of the patient, so this arrangement puts the airway equipment out of reach of the seat where the airway is managed.

Suction unit and dressings at the head; airways and blood pressure cuffs at the side: This is the misconception that the two groups can be broken apart and remixed by how often each individual item is used. Airway management, artificial ventilation, and oxygen delivery equipment is packaged together so the crew is not retrieving pieces of one intervention from two locations; splitting the suction unit from the airways defeats that.

Airways and blood pressure at the head; suction unit and dressings at the side: This is the misconception that the powered suction unit is heavy equipment that belongs low and to the side while the small airway adjuncts go up front. It splits the same airway group as option B, and it leaves the crew reaching away from the attendant seat for suction, which is the item most often needed without warning.

Question 9 of 10

A patient with a suspected spinal injury has been placed on a backboard with a cervical collar and head blocks. What should the paramedic do next before transport?

Show the answer and rationale

Correct answer · Secure the patient to the backboard with at least two straps across the torso and legs

Full spinal immobilization requires the body secured to the backboard with straps (at least two, ideally three, across the chest, pelvis, and legs) in addition to the collar and head immobilization device. Some skill sequences secure the torso and leg straps before applying the head immobilizer to avoid disturbing head alignment while strapping; regardless of that order, once the patient has reached this point (collar and head blocks already in place), the necessary next step is to secure the torso and legs with straps before transport.

Why the others are wrong

Remove the cervical collar, since the head blocks now hold the head in position: A cervical collar does come off eventually, but that decision belongs to the hospital after imaging or a formal clearance protocol, not to the paramedic in the back of the truck. The collar and the head blocks are one system with divided jobs: blocks and tape control rotation and lateral movement, while the collar limits flexion and extension. Remove the collar and the patient can still nod inside the blocks, which is exactly the motion you were most worried about in a suspected cervical injury.

Leave the straps loosely fastened so the patient can reposition if uncomfortable: Leaving straps loose comes from a real concern. A rigid board is genuinely miserable, and comfort matters. A strap loose enough to permit repositioning permits precisely the movement the entire package was built to prevent, and it also fails as a restraint the moment the ambulance stops hard or swerves. Address the comfort problem the way it is actually solved: pad the voids and the pressure points behind the head, the small of the back, and the knees, not by loosening what secures the patient.

Begin transport without straps as long as the patient remains calm and cooperative: Cooperation is not immobilization. A calm patient still moves reflexively when the vehicle brakes or hits a pothole, still turns toward a sudden noise, and can become agitated at any point from hypoxia, head injury, pain, or a falling blood sugar. Securing the patient does not depend on demeanor. It depends on the mechanism of injury that put them on the board, and that mechanism has not changed because the patient is being pleasant.

Question 10 of 10

A patient meets the local criteria for a ST-elevation myocardial infarction, and a cardiac catheterization center is 10 minutes farther away than the closest hospital. What is the correct transport decision?

Show the answer and rationale

Correct answer · Transport to the cardiac catheterization center, since STEMI requires specialized care

The general rule is the closest appropriate facility, and a cardiac center is the appropriate facility when a patient meets STEMI criteria, bypassing a closer, non-specialized hospital for the catheterization center is the correct exception.

Why the others are wrong

Transport to the closest hospital because minimizing transport time takes priority: A shorter transport time only matters when the closer facility can deliver the definitive care the patient needs; protocol directs the closest appropriate facility, and a 10-minute difference is an acceptable trade for direct access to cardiac catheterization.

Transport to the closest hospital and request a later transfer if needed: Delaying definitive cardiac care for an interfacility transfer defeats the purpose of bypassing to the appropriate center in the first place.

Ask the patient which hospital they would prefer, and transport there instead: Facility selection for a time-critical cardiac emergency is a clinical decision based on protocol, not patient preference.

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