2025 HESI A2 words Vocabulary Study Guide Exam with
Questions and Rationalized Answers 100% Pass Score
1. Abstain: To voluntarily refrain from something. (EX: The dental hygienist instruct- ed the
patient to abstain from smoking to improve his breath odor.)
2. Abrupt: Sudden and possibly unexpected
3. Accolade: Tribute or honor.
4. Accountable: To be responsible. (EX: Paramedics are accountable for maintain- ing up-to-
date knowledge or resuscitation techniques.)
5. Acute: Sudden, intense. (EX: The nurse administered the prescribed pain med- ication to
the patient who was experiencing acute pain after surgery.)
6. Adhere: To hold fast or stick together. (EX: The tape must adhere to the patient's skin to hold
the bandage in place.)
7. Adverse: Undesired, possibly harmful. (EX: Vomiting is an adverse effect of many
medications.)
8. Aegis: Control, protection. (EX: Unit staffing decisions are under the aegis of the nurse
manager.)
9. Aggregate: A sum total of many things.
10. Aggrieved: Hurt or angry.
11. Ambivalent: Uncertain, having contradictory feelings. (EX: After learning that she had
breast cancer, the patient was ambivalent about having a mastectomy.)
12. Anachronism: A thing of the past. "My disease is anachronism"
13. Antidote: Cure or remedy. "I need an antidote for this headache"
14. Alleviate: Reduce. "This medicine is alleviating my pain"
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, 15. Apply: To place, put on, or spread something.
16. Assent: To give consent, to agree.
17. Audible: Able to be heard. (EX: The respiratory therapist noted the patient's audible
wheezing as a symptom of the patient's asthma.
18. Bacteria: Single-celled, microscopic organisms.
19. Barrage: Bombardment, onslaught. (continuous attack). "This staph disease is so
barrage, I keep getting butt pimples."
20. Bearing: Manner, direction, or influence.
21. Benign: Not harmful.
22. Bilateral: Present on two sides.
23. Callous: Heartless, cruel, or pitiless.
24. Cardiac: Of or relating to the heart.
25. Cataract: Medical condition in which the lens of the eye becomes progressively opaque,
resulting in blurred vision.
26. Cavity: An opening or an empty area.
27. Cease: Come to an end or bring to an end.
28. Chronology: Order of events as they occurred; timeline.
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Questions and Rationalized Answers 100% Pass Score
1. Abstain: To voluntarily refrain from something. (EX: The dental hygienist instruct- ed the
patient to abstain from smoking to improve his breath odor.)
2. Abrupt: Sudden and possibly unexpected
3. Accolade: Tribute or honor.
4. Accountable: To be responsible. (EX: Paramedics are accountable for maintain- ing up-to-
date knowledge or resuscitation techniques.)
5. Acute: Sudden, intense. (EX: The nurse administered the prescribed pain med- ication to
the patient who was experiencing acute pain after surgery.)
6. Adhere: To hold fast or stick together. (EX: The tape must adhere to the patient's skin to hold
the bandage in place.)
7. Adverse: Undesired, possibly harmful. (EX: Vomiting is an adverse effect of many
medications.)
8. Aegis: Control, protection. (EX: Unit staffing decisions are under the aegis of the nurse
manager.)
9. Aggregate: A sum total of many things.
10. Aggrieved: Hurt or angry.
11. Ambivalent: Uncertain, having contradictory feelings. (EX: After learning that she had
breast cancer, the patient was ambivalent about having a mastectomy.)
12. Anachronism: A thing of the past. "My disease is anachronism"
13. Antidote: Cure or remedy. "I need an antidote for this headache"
14. Alleviate: Reduce. "This medicine is alleviating my pain"
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13
, 15. Apply: To place, put on, or spread something.
16. Assent: To give consent, to agree.
17. Audible: Able to be heard. (EX: The respiratory therapist noted the patient's audible
wheezing as a symptom of the patient's asthma.
18. Bacteria: Single-celled, microscopic organisms.
19. Barrage: Bombardment, onslaught. (continuous attack). "This staph disease is so
barrage, I keep getting butt pimples."
20. Bearing: Manner, direction, or influence.
21. Benign: Not harmful.
22. Bilateral: Present on two sides.
23. Callous: Heartless, cruel, or pitiless.
24. Cardiac: Of or relating to the heart.
25. Cataract: Medical condition in which the lens of the eye becomes progressively opaque,
resulting in blurred vision.
26. Cavity: An opening or an empty area.
27. Cease: Come to an end or bring to an end.
28. Chronology: Order of events as they occurred; timeline.
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