Free Wound Care Certification MCQ Question and Answer — Questions and Answers
Question 1: The word "slough" is used to describe a wound and means:
- a soft viscous yellow layer of necrotic tissue that covers and adheres to the wound (Correct answer)
- softening and irritation caused by akin contact with liquid
- bright pink or red granular new tissue formed from capillary beds
- formation of healed tissue from epidermal cells over granulation
Correct answer: a soft viscous yellow layer of necrotic tissue that covers and adheres to the wound
The term 'slough' in wound care describes a soft, viscous, yellow or tan layer of necrotic tissue that covers and adheres to the wound bed. It consists of dead cells, fibrin, and exudate. Slough must be removed, often through debridement, for the wound to progress to healing.
Question 2: If a lesion has been in the inflammatory phase of healing for 10 days without progressing and the surrounding skin has remained erythematous and edematous, which of the following should the healthcare provider initially suspect?
- Secondary trauma
- Immunosuppression
- Infection (Correct answer)
- Inadequate protein intake
Correct answer: Infection
If a wound remains in the inflammatory phase for an extended period (10 days without progression) and exhibits persistent signs like erythema (redness) and edema (swelling), infection should be the primary suspicion. Infection prolongs the inflammatory response, impairs the normal healing cascade, and can lead to further tissue damage and delayed wound closure.
Question 3: Which diagnostic test is best recommended for a patient who follows a strict vegan diet and doesn't eat any foods containing gluten or legumes?
- BUN
- Vitamin D level
- Prealbumin
- Zinc level (Correct answer)
Correct answer: Zinc level
Zinc is an essential trace element vital for numerous physiological processes, including wound healing, immune function, and protein synthesis. A strict vegan diet that also excludes gluten and legumes (common dietary sources of zinc) significantly increases the risk of zinc deficiency. Therefore, a zinc level test is the most appropriate diagnostic to assess nutritional status related to wound healing in this patient.
Question 4: How would a wound that initially healed as expected but then showed signs of plateauing and stayed unaltered for the second and third weeks be classified?
- Recalcitrant wound
- Stunned wound (Correct answer)
- Acute wound
- Chronic wound
Correct answer: Stunned wound
A 'stunned wound' describes a wound that initially heals as expected but then plateaus or shows a significant slowdown in progress, remaining unaltered for several weeks. This term is used when the wound's healing trajectory has been interrupted or slowed, indicating a need to reassess the underlying factors affecting healing, without necessarily classifying it as a chronic wound yet.
Question 5: The kind of wound most likely to contract at the slowest rate is
- circular (Correct answer)
- rectangular
- square
- linear
Correct answer: circular
Circular wounds tend to contract at the slowest rate compared to other shapes like linear, rectangular, or square wounds. This is because the forces of contraction are distributed evenly around the circumference, making it less efficient in pulling the wound edges together. Linear wounds, for example, contract much faster along their length.
Question 6: When taking steps to avoid friction that could lead to a pressure ulcer, which of the following should be avoided?
- Skin sealants
- Talcum powder (Correct answer)
- Alcohol-based skin barrier
- Cornstarch
Correct answer: Talcum powder
Talcum powder should be avoided in areas prone to friction and pressure ulcers. It can clump, absorb moisture, and create abrasive particles that increase friction and shear forces on the skin. This can irritate the skin and contribute to skin breakdown, rather than preventing pressure ulcer formation.
Question 7: On wounds, silver nitrate chemical cauterization is used to
- control bleeding
- decrease exudate
- debride ulcer
- treat hypergranulation (Correct answer)
Correct answer: treat hypergranulation
Silver nitrate chemical cauterization is commonly used in wound care to treat hypergranulation tissue, also known as 'proud flesh.' This excess granulation tissue can impede epithelialization and wound closure. Silver nitrate helps to reduce the hypergranulation by chemically burning the superficial layers, allowing the wound to progress to healing.
Question 8: A 19-year-old girl comes to the ED with a cut on her lip. He got the cut when he got into an argument. On close inspection, he has a 2-cm horizontal cut in the middle of his lower right lip. The lower lip has gotten a lot bigger. The attending asks you, the intern, to do a mental block for anesthesia. Which of the following is a true statement about mental blocks?
- The patient requires a right-sided mental block.
- A mental block is performed by injecting lidocaine into the mental nerve foramen.
- A mental block anesthetizes the mental nerve, which innervates the lower lip. (Correct answer)
- A mental block is not appropriate in this patient because it will lead to worsened swelling of the lower lip swelling.
Correct answer: A mental block anesthetizes the mental nerve, which innervates the lower lip.
A mental block specifically targets the mental nerve, which is a branch of the inferior alveolar nerve. This nerve provides sensory innervation to the skin of the chin and the lower lip. Therefore, a mental block effectively anesthetizes the lower lip, making it an appropriate choice for repairing a laceration in that area.
Question 9: A 12-years girl with a forehead injury is brought to the emergency room by her parents. The patient hit her head on a doorknob, according to her dad. During the exam, the patient is cooperative, but he or she is nervous about getting the anesthetic shot. She has a 0.5-cm cut in the middle of her forehead. The edges are clean. Her parents ask about "skin glue," which they saw on TV and heard about. Which of the following is true about tissue adhesives made from cyanoacrylate?
- Tissue adhesives have a higher rate of infection and tissue dehiscence than sutures.
- It cannot be applied to mucous membranes and areas with thick hair. (Correct answer)
- Tissue adhesives are applied inside the wound to pull skin edges together.
- Tissue adhesives are best suited for forehead lacerations between 5 and 10 cm in length.
Correct answer: It cannot be applied to mucous membranes and areas with thick hair.
Cyanoacrylate tissue adhesives are not suitable for use on mucous membranes, such as the inside of the mouth or lips, because moisture can cause premature polymerization and irritation. Additionally, they are less effective in areas with thick hair, as the hair can interfere with proper adhesion and wound edge approximation, compromising the seal.
Question 10: A 35-year-old chef comes to the emergency room with a whole fingertip. She says that her knife fell while she was cutting up vegetables. She brought the pulp that had been cut off in a plastic bag. On examination, the patient's distal volar tip of the second finger has a clean, 5-mm-wide slice of skin. There is a lot of bleeding that doesn't pulsate. There is no damage to the distal interphalangeal joint (DIP), the proximal interphalangeal joint (PIP), or the nail. Her last tetanus shot was about a year ago. Which is the best next step in management?
- Irrigate the hand and replant distal tip in the ED as soon as possible.
- Consult hand surgery for replantation of the pulp in the operating room.
- Discharge the patient with a pressure dressing and splint after the wound is irrigated and the bleeding is controlled. (Correct answer)
- Immediately place the amputated tip on ice to prevent cell death.
Correct answer: Discharge the patient with a pressure dressing and splint after the wound is irrigated and the bleeding is controlled.
For small fingertip amputations, especially those involving only the pulp without bone exposure or significant joint involvement, conservative management is often preferred. The fingertip has excellent regenerative capacity, and healing by secondary intention with a pressure dressing and splint can lead to good functional and cosmetic outcomes. Replantation is typically reserved for larger, more complex amputations.
Question 11: A 30-year-old man comes to the emergency room (ED) with a cut on his right forearm. It was caused by a piece of glass during a fight in a bar. He says the cut hurts, but he denies feeling like something is in there. At first look, the cut is small and only 4 cm long. The patient has normal strength and feeling in the extremities. Which of the following claims about imaging this patient is true?
- Imaging is not indicated because retained glass does not cause an inflammatory reaction.
- Imaging can be omitted because he does not have a foreign body sensation.
- Computed tomographic (CT) scan is the most commonly used modality to rule out a foreign body.
- Plain film is the next best step in the management of this patient. (Correct answer)
Correct answer: Plain film is the next best step in the management of this patient.
Even if a patient denies a foreign body sensation, glass is radiopaque and can be retained in a wound, potentially leading to complications like infection or delayed healing. Plain film (X-ray) is the most appropriate initial imaging modality because it is readily available, cost-effective, and highly effective at detecting radiopaque foreign bodies like glass. While CT scans are more sensitive, they are typically reserved for cases where plain films are negative but suspicion remains high, or for complex anatomical locations.
Question 12: A 35-year-old woman walks into the emergency room with only her left hand. She says that she cut herself when she tried to cut a bagel. She has a small, 2-cm cut on the left side of her thenar eminence. There aren't any deeper structures involved. How should the wound be cleaned?
- Use a high-pressure syringe and irrigate with water. (Correct answer)
- Punch holes in a normal saline bag or bottle and irrigate the wound.
- Soak her hand in normal saline for 30 minutes.
- Wound cleaning is unnecessary because wound was sustained from a clean knife.
Correct answer: Use a high-pressure syringe and irrigate with water.
High-pressure irrigation is the most effective method for cleaning wounds, as it mechanically removes debris, bacteria, and contaminants, thereby reducing the risk of infection. Using a high-pressure syringe (e.g., a 35-mL syringe with a 19-gauge angiocatheter) with clean water or saline provides the necessary force to adequately cleanse the wound. Soaking or low-pressure irrigation is less effective at dislodging foreign material and bacteria.
Question 13: How should the syringe be positioned when performing a wound irrigation?
- 1 cm above the wound
- 1 finger-length above the wound
- 1 mm above the wound
- 1 inch above the wound (Correct answer)
Correct answer: 1 inch above the wound
Positioning the syringe approximately 1 inch (or 2.5 cm) above the wound creates an optimal pressure for effective irrigation. This distance allows the stream of irrigant to generate sufficient force to dislodge debris and bacteria without causing additional tissue trauma or excessive splashing. Maintaining this distance ensures efficient wound cleansing while minimizing potential contamination of the surrounding area.
Question 14: What is osteomyelitis?
- Bone infection (Correct answer)
- The presence of pathogenic organisms in the blood or tissue
- A and B
- Infection of the intestine
Correct answer: Bone infection
Osteomyelitis is a medical term that specifically refers to an infection of the bone. This condition can be caused by bacteria, fungi, or other pathogens that reach the bone through the bloodstream, from nearby infected tissue, or directly through an open wound. It is a serious condition that often requires prolonged antibiotic treatment and sometimes surgical intervention.
Question 15: What is the separation of one or more layers of a wound caused by too much pressure on a wound that hasn't healed? Muscles are usually intact in this state.
- Evisceration
- Dehiscence (Correct answer)
- A and B
- Fistula
Correct answer: Dehiscence
Dehiscence is the partial or complete separation of the layers of a surgical wound, often occurring due to excessive tension or inadequate healing. In this state, the superficial layers of the wound open, but the deeper structures, such as muscles, typically remain intact. Evisceration is a more severe complication where internal organs protrude through the wound opening.
Question 16: During what part of the healing process does the body's general response show up most?
- Inflammatory phase (Correct answer)
- Hemostasis
- Maturation phase
- Proliferation phase
Correct answer: Inflammatory phase
The inflammatory phase is the initial and most prominent stage of wound healing, characterized by the body's immediate response to injury. During this phase, immune cells are recruited to the wound site, and inflammatory mediators are released, leading to classic signs such as redness, swelling, heat, pain, and loss of function. This general body response is crucial for clearing debris and pathogens, preparing the wound for subsequent healing stages.
Free Wound Care Certification MCQ Question and Answer
The word "slough" is used to describe a wound and means: