Errors Across Processes Of Drug Administration
A provider prescribes 10 mg of a medication, but the nurse accidentally administers 100 mg to the patient.
What type of medication error occurred?
Treatment error
Remember:
💊 Treatment error = something went wrong with the treatment.
A nurse is preparing an clinical review on infection control. What is the six links in the chain of infection required for an infectious disease to develop? -IN ORDER ;)
Infectious agent → Reservoir → Portal of exit → Mode of transmission → Portal of entry → Susceptible host
A healthcare worker contracts a pathogen after touching a contaminated blood pressure cuff that was recently used on an infected patient. Which mode of transmission occurred?
A.Vector transmission
B.Indirect contact transmission
C.Direct contact transmission
D.Vehicle transmission
B.Indirect contact transmissionRight answerIndirect contact transmission occurs when a susceptible host makes personal contact with a contaminated inanimate object, such as medical equipment or soiled dressings.
Scenario: A patient was exposed to influenza 2 days ago after caring for a sick family member. The patient currently feels completely healthy and exhibits no clinical signs or symptoms. Which stage of infection is the patient experiencing?
Correct Answer: B) Incubation period
Rationale: The incubation period is the interval between the entrance of the pathogen into the body and the appearance of the very first symptoms. During this phase, the pathogen is present, but the host displays no clinical signs or symptoms
A provider intends to prescribe 5 mg of a medication but accidentally writes an order for 50 mg.
What type of medication error occurred?
Prescribing
The provider wrote the wrong dose.
🧠 Prescribing = the order is wrong.
The nurse is teaching a student about reservoirs of infection. Which example is a reservoir?
A. A contaminated bedside commode
B. A patient’s intact skin
C. A nurse performing hand hygiene
D. A sterile IV dressing
A. A contaminated bedside commode
Rationale
A. A reservoir is a place where a pathogen can live and multiply. Healthcare equipment and contaminated inanimate objects can serve as reservoirs.
B. Intact skin primarily acts as a protective barrier and portal of entry prevention, not necessarily as a contaminated reservoir.
C. Hand hygiene interrupts transmission rather than serving as a reservoir for pathogen growth.
D. A sterile IV dressing is intended to prevent microbial contamination and is not an example of a reservoir.
How does airborne transmission fundamentally differ from droplet transmission according to infection control standards?
A.Airborne transmission involves microscopic droplet nuclei suspended in the air, whereas droplet transmission involves larger particles traveling limited distances.
B.Airborne transmission requires skin-to-skin contact, whereas droplet transmission relies on insect vectors.
C.Droplet transmission remains suspended in dust particles indefinitely, while airborne particles sink immediately.
D.Droplet transmission requires a contaminated inanimate object, whereas airborne transmission occurs through contaminated water.
A.Airborne transmission:That's right! Airborne pathogens float on evaporated droplet nuclei or dust particles suspended in air currents, while droplet transmission involves heavier particles that travel up to 3 feet.
Scenario: A patient reports feeling "under the weather" with generalized fatigue, malaise, and a low-grade fever, but shows no site-specific localized lesions or diagnostic signs. During this time, pathogens are growing and multiplying, and the patient may spread the illness to others. Which stage is being demonstrated?
Correct Answer: B) Prodromal stage
Rationale: The prodromal stage spans the onset of nonspecific, generalized symptoms (such as fatigue, low-grade fever, and malaise) up until specific diagnostic symptoms manifest. Microorganisms actively multiply during this stage, making the patient contagious even before disease-specific symptoms appear (e.g., itching/tingling before a herpes simplex lesion opens)
A nurse receives an order for furosemide 20 mg IV. While entering the order into the electronic system, the nurse accidentally enters furosemide 200 mg IV.
This is an example of:
Transcribing
The provider's order was correct. The error occurred when the nurse entered the order incorrectly.
Which findings represent possible portals of entry for a pathogen? Select all that apply.
A. Respiratory tract
B. A properly disinfected blood pressure cuff
C. A sealed, intact dressing over a wound
D. Gastrointestinal tract
E. Broken skin
F. Mucous membranes
Correct answer
A, D, E, F
Rationale
A. The respiratory tract is identified as a portal of entry for pathogens.
B. A properly disinfected cuff is not a portal of entry; contaminated equipment may instead serve as a reservoir or vehicle for transmission.
C. A sealed intact dressing helps protect broken skin and does not itself represent an exposed portal of entry.
D. The gastrointestinal tract can serve as a portal of entry, including through contaminated food or water.
E. Broken skin provides an opening through which a pathogen can enter a susceptible host.
F. Mucous membranes can provide access for microorganisms to enter a host; maintaining their integrity reduces infection risk.
An outbreak of illness occurs among surgical patients who all received a specific intravenous fluid batch contaminated during manufacturing. Which mode of transmission is illustrated?
A. Airborne
B.Direct contact transmission
C.Vehicle transmission
D.Vector transmission
C.Vehicle transmissionRight answerVehicle transmission refers to the spread of pathogens through items like drugs, intravenous solutions, blood products, food, or water.
Scenario: A pediatric patient presents with a high fever and pronounced, painful swelling of the parotid and salivary glands. Which stage of the course of infection is the child demonstrating?
Correct Answer: C) Illness stage
Rationale: The illness stage is the period during which the patient manifests signs and symptoms that are specific to the type of infection (e.g., swollen parotid glands in mumps, or localized severe throat pain and exudate in strep throat)
A patient receives a medication known to lower blood pressure. The nurse administers the medication correctly but does not check the patient's blood pressure afterward.
The patient's blood pressure later drops to 78/46 mmHg.
Which stage of medication delivery was involved in the error?
Monitoring
The medication was administered correctly, but the nurse failed to monitor the patient's response.
🧠 Monitoring = “What happened after we gave it?” 👀
A nurse is evaluating environmental factors that promote microbial growth in reservoirs. Which environment provides optimal conditions for the survival and multiplication of most human pathogens?
A patient develops malaria after being bitten by an infected mosquito. What specific mode of transmission has taken place?
A.Vehicle transmission
B.Indirect contact transmission
C.Internal vector transmission
D.External mechanical vector transfer
.C.Internal vector transmissionThat's right!Internal vector transmission occurs when parasitic or infectious conditions are transmitted internally through a living vector such as a mosquito, tick, or flea.
Scenario: A patient who underwent treatment for acute bacterial pneumonia reports that fever, cough, and chest pain have completely resolved, and vital signs have returned to baseline, though full energy has not yet been regained. Which stage of infection does this describe?
Correct Answer: B) Convalescence
Rationale: Convalescence is the final stage when acute infection symptoms disappear and the tissue repairs itself. The length of recovery varies from several days to months depending on host resistance and the severity of the infection
The medication order states: Give 2 tablets by mouth.
The nurse accidentally gives the patient 4 tablets.
Which type of error occurred?
Administration
The order was correct, but the nurse gave the wrong dose.
🧠 Administration = something went wrong when the medication was given.
While changing a contaminated dressing, a health care worker’s unwashed hands contact purulent wound drainage and subsequently touch another patient's intravenous tubing. Which mode of transmission occurred, and what is the most effective intervention to break this link?
Correct (B): Indirect contact transmission involves personal contact of a susceptible host with a contaminated inanimate object or intermediate surface, such as a health care worker's hands becoming contaminated by touching germs on dressings or equipment and spreading them to another patient. The unwashed hands of health care providers are the primary route for pathogen transmission in health care settings, making hand hygiene the single most effective practice to interrupt transmission and break the chain
Varicella zoster (chickenpox) is notable in infection control because it can spread through which dual routes of transmission?
A.Indirect contact and internal vector transmission
B.Droplet transmission and external mechanical flies
C.Vector transmission and vehicle transmission
D.Airborne route and direct contact
D.Airborne route and direct contactThat's right!Source material specifically highlights varicella zoster as being spread both by airborne droplet nuclei and through direct contact.
Which sequence correctly lists the usual stages of an infectious disease?
Answer: B. Incubation → prodromal → illness → convalescence
The usual sequence is incubation, prodromal, illness, and convalescence. Not every infection follows a clearly defined sequence.