HOSA Medical Assisting Exam Questions & Verified
Answers (2025–2026 Edition) – Complete Study Guide
Introduction:
This document provides a complete set of HOSA Medical Assisting
exam questions with 100% verified correct answers for the 2025–
2026 academic year. It covers key medical assisting topics, including
infection control, insurance, patient care, pharmacology, OSHA
regulations, anatomy, sterilization, vital signs, and emergency
procedures. Additional study guide Q&As are included for practical
scenarios such as triage, patient communication, ethics, and clinical
procedures, making it a reliable Grade A resource for exam
preparation.
Exam Questions and Answers:
hookworms: --- correct answer ---attach to small intestine and
infect the heart and lungs
ascariasis --- correct answer ---live in small intestine and can cause
an obstruction
trichinella spiralis --- correct answer ---causes trichinosis and is
contracted by eating raw or poorly cooked pork
enterobiasis --- correct answer ---pinworm
,taenia solium (pork tapeworm) --- correct answer ---contracted by
eating raw or poorly cooked pork
plasmodium --- correct answer ---causes malaria (invades red
blood cells and causes them to rupture)
endogenous --- correct answer ---infections or disease originates
within the body (metabolic disorders, congenital abnormalities)
exogenous --- correct answer ---infection or disease originated
outside the body (pathogenic organisms that invade the body,
radiation)
nosocomial --- correct answer ---infection is one acquired by an
individual in a healthcare facility
opportunitistic infections --- correct answer ---those that occur
when the body's defenses are weak (cancer)
chain of infection --- correct answer ---•causative agent:
(bacterium or virus that can cause disease)
• reservoir: (area where C.A. can live)
• portal of exit: (way for the causative agent to escape from the
reservoir)
,•mode of transmission: (way that the causative agent can be
transmitted to another reservoir)
•portal of entry: ( way for causative agent to enter a new reservoir
or host)
•susceptible host: (person likely to get infected b/c body defenses
are weak)
staphylococci --- correct answer ---cocci occurs in clusters or
groups (boils, UTI, wound infections and toxic shock)
bacilli --- correct answer ---•rod-shaped bacteria (single, pairs or in
chains) contain flagella
•form spores
•hard to kill
spirilla --- correct answer ---spiral or corkscrew (syphilis and
cholera)
protozoa --- correct answer ---one-celled animal-like organisms
often found in decayed materials (may contain flagella
fungi --- correct answer ---simple, plantlike organisms that live on
dead organic matter (yeast and mold)
, rickettsiae --- correct answer ---cannot live outside the cells of
another living organism. found in fleas, lice, ticks, and mites.
(typhus fever and Rocky mountain spotted fever)
viruses --- correct answer ---smallest microorganisms visible using
microscope.
•spread from human to human by blood or other secretions
•difficult to kill bc they are resistant to many disinfectants and not
affective by antibiotics
•common cold, measles, mumps, chicken pox, herpes, warts, flu,
and polio
helminths --- correct answer ---•multicellular parasitic organisms
(worms or flukes)
• transmitted to humans when we ingest the eggs from
contaminated food or get but bitten by infected insects
repression --- correct answer ---forcing of unacceptable or painful
ideas, feelings and impulses into the unconscious mind without
being aware of it
suppression --- correct answer ---condition where the person
becomes involved in a project, hobby, or work on purpose so that a
painful situation can be avoided (relationships)
Answers (2025–2026 Edition) – Complete Study Guide
Introduction:
This document provides a complete set of HOSA Medical Assisting
exam questions with 100% verified correct answers for the 2025–
2026 academic year. It covers key medical assisting topics, including
infection control, insurance, patient care, pharmacology, OSHA
regulations, anatomy, sterilization, vital signs, and emergency
procedures. Additional study guide Q&As are included for practical
scenarios such as triage, patient communication, ethics, and clinical
procedures, making it a reliable Grade A resource for exam
preparation.
Exam Questions and Answers:
hookworms: --- correct answer ---attach to small intestine and
infect the heart and lungs
ascariasis --- correct answer ---live in small intestine and can cause
an obstruction
trichinella spiralis --- correct answer ---causes trichinosis and is
contracted by eating raw or poorly cooked pork
enterobiasis --- correct answer ---pinworm
,taenia solium (pork tapeworm) --- correct answer ---contracted by
eating raw or poorly cooked pork
plasmodium --- correct answer ---causes malaria (invades red
blood cells and causes them to rupture)
endogenous --- correct answer ---infections or disease originates
within the body (metabolic disorders, congenital abnormalities)
exogenous --- correct answer ---infection or disease originated
outside the body (pathogenic organisms that invade the body,
radiation)
nosocomial --- correct answer ---infection is one acquired by an
individual in a healthcare facility
opportunitistic infections --- correct answer ---those that occur
when the body's defenses are weak (cancer)
chain of infection --- correct answer ---•causative agent:
(bacterium or virus that can cause disease)
• reservoir: (area where C.A. can live)
• portal of exit: (way for the causative agent to escape from the
reservoir)
,•mode of transmission: (way that the causative agent can be
transmitted to another reservoir)
•portal of entry: ( way for causative agent to enter a new reservoir
or host)
•susceptible host: (person likely to get infected b/c body defenses
are weak)
staphylococci --- correct answer ---cocci occurs in clusters or
groups (boils, UTI, wound infections and toxic shock)
bacilli --- correct answer ---•rod-shaped bacteria (single, pairs or in
chains) contain flagella
•form spores
•hard to kill
spirilla --- correct answer ---spiral or corkscrew (syphilis and
cholera)
protozoa --- correct answer ---one-celled animal-like organisms
often found in decayed materials (may contain flagella
fungi --- correct answer ---simple, plantlike organisms that live on
dead organic matter (yeast and mold)
, rickettsiae --- correct answer ---cannot live outside the cells of
another living organism. found in fleas, lice, ticks, and mites.
(typhus fever and Rocky mountain spotted fever)
viruses --- correct answer ---smallest microorganisms visible using
microscope.
•spread from human to human by blood or other secretions
•difficult to kill bc they are resistant to many disinfectants and not
affective by antibiotics
•common cold, measles, mumps, chicken pox, herpes, warts, flu,
and polio
helminths --- correct answer ---•multicellular parasitic organisms
(worms or flukes)
• transmitted to humans when we ingest the eggs from
contaminated food or get but bitten by infected insects
repression --- correct answer ---forcing of unacceptable or painful
ideas, feelings and impulses into the unconscious mind without
being aware of it
suppression --- correct answer ---condition where the person
becomes involved in a project, hobby, or work on purpose so that a
painful situation can be avoided (relationships)
