10 free AEMT practice questions: Diabetic Emergencies and Glucometry

Defer glucose testing pending a history: Waiting for the history feels methodical, and with no diabetic history and no jewelry there seems to be nothing pointing at sugar. This treats a diabetic history as the trigger for testing, and the reading is driven by how the patient presents rather than by what the chart says. Plenty of hypoglycemic patients have never been diagnosed.

Request a point-of-care lactate level: Lactate is a genuinely useful number in a sick patient, and you will hear it discussed the moment this patient reaches the hospital. Lactate belongs to a point-of-care panel, and panels reporting electrolytes, lactate, kidney function, or blood gases are paramedic tools. Your laboratory reach as an AEMT stops at the glucometer.

Draw venous tubes for hospital analysis: Drawing venous tubes is inside AEMT scope and is worth doing where your system asks for it, but those tubes get run at the hospital. That does nothing for the patient who is confused in front of you right now.

The low reading is a meter error: Meters do fail, and a poorly perfused fingertip really does read falsely low, but nothing here points at the meter. The confusion and the cool moist skin are exactly what that number predicts.

The patient is compensating with vasoconstriction: Vasoconstriction is part of the same sympathetic response, and it would arrive packaged with a fast pulse rather than a normal one. It does not explain why the heart rate alone is missing from the picture.

The hypoglycemia is too mild to raise the pulse: A blood glucose level of 48 mg/dL in a confused patient is not mild. How low the sugar goes does not decide whether the pulse rises; whether the patient can mount the response does.

Deep rapid respirations with a fruity odor: Kussmaul breathing and a fruity odor are the most vivid findings in the whole diabetic chapter, so they get grabbed whenever a question says diabetic. They are the acidosis of ketoacidosis, which sits at the high end rather than the low end, and they tell you the body is burning fat because sugar cannot get into the cells.

Dry mucous membranes after days of thirst: Dry membranes read as a patient who is depleted and sick, and a hypoglycemic patient can certainly look that way. The timeline is what gives it away: days of thirst is osmotic water loss from a high sugar, and a low sugar moves in minutes to an hour, so it never has time to dry anyone out.

Warm dry skin with frequent urination: Frequent urination is the finding most people attach to the word diabetes, so it looks at home under either heading. It only happens when the sugar is high enough to spill into the urine and drag water with it, which is the opposite direction of error, and the warm dry skin sitting beside it is the same tell.

Accept the capillary reading as accurate regardless of the patient's perfusion status: The reading is not automatically accurate just because it was obtained; poor peripheral perfusion is a recognized source of unreliable capillary glucose readings and should prompt a repeat test at a better site.

Assume the glucometer is malfunctioning and discontinue glucose testing: A reading that doesn't fit the clinical picture in a poorly perfused patient is a recognized limitation of capillary sampling, not necessarily equipment failure.

Use the palm of the hand instead, since it is unaffected by perfusion status: The palm is not a standard capillary testing site and is not established as perfusion-independent.

Hypoglycemia: belongs on the differential for any diabetic patient with altered mental status and should be checked first because it is instantly correctable. It comes on over minutes to hours with cool, moist skin, not gradually over two days with warm, dry skin.

Hyperosmolar hyperglycemic state: This is the closest competitor and shares the gradual onset, the dehydration, and the altered mental status. The separators are in the question: the fruity breath odor and the deep, rapid respirations are ketoacidosis, and the hyperosmolar state characteristically produces neither.

Salicylate toxicity: also causes deep, rapid respirations, which makes it a real look-alike for the breathing pattern alone. It does not produce a fruity odor, and nothing in the history points to an ingestion.

Continue airway positioning and monitor for postictal recovery: A student picks this because a patient who is slow to wake after a seizure is the textbook picture of a postictal state, and postictal patients are managed by waiting. The coworker states this patient is usually talking again within a few minutes, and 12 minutes after a 90-second seizure the patient still responds only to pain. A typical postictal patient improves soon after the seizure stops; a patient whose blood glucose level is low does not.

Request a paramedic intercept for an anticonvulsant medication: A student picks this because a patient who will not wake up must, to them, still be seizing. The seizure lasted about 90 seconds and stopped on its own, so there is no continuing seizure to treat, and a blood glucose level has not yet been obtained to rule out the cause the question is pointing at.

Assist ventilations with a bag-mask device and reassess the chest rise: A student picks this because a patient who responds only to pain sounds like a patient whose breathing should be taken over. The respiratory rate is 20, the chest rises equally with each breath, and the SpO₂ is 96% on room air, so the tidal volume and rate are adequate and assisted ventilation is not indicated.

Withhold glucose until a blood glucose level can be measured: A student picks this because they were taught never to treat a diabetic emergency without a number to justify it. When no reading can be obtained, the risks are not symmetric: an untreated low blood glucose level causes loss of consciousness and permanent brain injury quickly, while the amount of sugar given in the field is unlikely to make a patient with high blood glucose significantly worse.

Begin an isotonic fluid infusion for suspected hyperglycemia: A student picks this because fluid is the treatment for the high side of a diabetic emergency and feels like the cautious guess when the direction is unknown. Nothing in the question points that way: the patient is awake with damp skin and a normal blood pressure and no history of thirst or frequent urination, and when the direction cannot be established the standard is to give glucose rather than to treat the high side.

Offer a sugar-free drink to avoid raising a high blood glucose level: A student picks this because they are trying to do something for the patient without risking a rise in a blood glucose level that might already be high. Drinks sweetened with saccharin or other synthetic sweeteners have little or no effect on the blood glucose level, so this treats neither of the two possibilities.

Give a second tube of oral glucose gel before arrival: A student picks this because more sugar seems like the safer margin for a patient who was just hypoglycemic. The repeat blood glucose level is 96 mg/dL, inside the normal range of 80 to 120 mg/dL, and the patient is alert and speaking normally, so a second dose treats a problem that has already been corrected.

Withhold food and fluids until the hospital evaluates the patient: A student picks this because they were taught that a patient headed for the hospital should have nothing by mouth. This patient is alert, speaks normally, and swallows without difficulty, and the last meal was more than eight hours ago; the glucose that was given is short-lived, and food is what keeps the level from falling again before arrival.

Defer further blood glucose measurement to the receiving facility: A student picks this because a normal repeat reading feels like the end of the episode. A patient whose mental status was changed by a glucose product is one of the most important to reassess, because a rapid response can be followed just as rapidly by a deterioration.

Give the oral glucose gel between the cheek and gum: A student who already prepared the gel may go ahead and give it, missing that the patient can no longer protect the airway now that responsiveness has dropped to only withdrawing from pain; the gel would risk aspiration.

Administer glucagon by the intramuscular route: A student who knows glucagon is the intramuscular fallback may reach for it here, but intravenous access has not even been attempted yet; glucagon is reserved for when a line is attempted and fails, not skipped to automatically.

Reposition the airway and continue to reassess before treating: A student who is cautious about the sudden change may want to reposition and observe longer, but a falling level of consciousness from hypoglycemia needs prompt glucose correction, not a delay while reassessing.

Glucagon is effective only by the intravenous route, not intramuscularly: A student may think the intramuscular route itself is the problem, but glucagon is routinely given intramuscularly in the field specifically because it does not require intravenous access.

Glucagon lowers the blood glucose level instead of raising it: A student may confuse glucagon's action with insulin's, but glucagon raises the blood glucose level; it is insulin that lowers it.

Glucagon needs simultaneous food intake by the patient to take effect: A student may think glucagon simply fails without simultaneous food intake, but its mechanism is triggering the liver to convert stored glycogen into glucose; the failure here is that those glycogen stores are already depleted, not that food was withheld at the same time.