Which is the function of the keratinocytes, a type of skin cell?

To serve as sensory receptors and transmitters for the sense of touch.

To anchor the epidermis to the dermis skin layer.

To provide skin pigmentation as protection from the sun's ultraviolet rays.

To produce a tough, fibrous structural protein for skin protection.

Answer and Explanation

The Correct Answer is D

A. To serve as sensory receptors and transmitters for the sense of touch. Merkel cells, not keratinocytes, function as sensory receptors in the skin, particularly for touch perception.

B. To anchor the epidermis to the dermis skin layer. Hemidesmosomes and basement membrane proteins help anchor the epidermis to the dermis, not keratinocytes.

C. To provide skin pigmentation as protection from the sun's ultraviolet rays. Melanocytes, not keratinocytes, produce melanin, which provides skin pigmentation and protects against UV radiation.

D. To produce a tough, fibrous structural protein for skin protection. Keratinocytes are the primary cells of the epidermis and produce keratin, a strong, fibrous protein that provides structure, durability, and waterproofing to the skin. They also play a role in wound healing and immune defense.

Nursing Test Bank

Quiz #1: RN Exams Pharmacology Exams Quiz #2: RN Exams Medical-Surgical Exams Quiz #3: RN Exams Fundamentals Exams Quiz #4: RN Exams Maternal-Newborn Exams Quiz #5: RN Exams Anatomy and Physiology Exams Quiz #6: RN Exams Obstetrics and Pediatrics Exams Quiz #7: RN Exams Fluid and Electrolytes Exams Quiz #8: RN Exams Community Health Exams Quiz #9: RN Exams Promoting Health across the lifespan Exams Quiz #10: RN Exams Multidimensional care Exams

Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Quiz #1: Naxlex RN Comprehensive online practice 2019 B with NGN Quiz #2: Naxlex RN Comprehensive Predictor 2023 Quiz #3: Naxlex RN Comprehensive Predictor 2023 Exit Exam A Quiz #4: Naxlex HESI Exit LPN Exam Quiz #5: Naxlex PN Comprehensive Predictor PN 2020 Quiz #6: Naxlex VATI PN Comprehensive Predictor 2020 Quiz #8: Naxlex PN Comprehensive Predictor 2023 - Exam 1 Quiz #10: Naxlex HESI PN Exit exam Quiz #11: Naxlex HESI PN EXIT Exam 2

Free Nursing Study Resources

Correct Answer is D

Explanation

A. Activation of exocytosis. Exocytosis is a cellular process used for releasing substances such as neurotransmitters or hormones, but it is not the primary response to inflammation. The immune response involves chemical mediators like histamine, prostaglandins, and cytokines, which increase vascular permeability.
B. Vasoconstriction. Vasodilation, not vasoconstriction, is a hallmark of inflammation. Initially, there may be a brief period of vasoconstriction, but the primary response is vasodilation, which increases blood flow to the inflamed area.
C. Decreased histamine production. Histamine production increases during inflammation, leading to vasodilation and increased vascular permeability. This allows immune cells to travel to the site of injury or infection.
D. Increased vascular permeability. The inflammatory response involves increased vascular permeability, allowing immune cells, proteins, and fluid to move from the bloodstream into tissues to fight infection and promote healing. This process leads to swelling (edema), redness, and warmth, which are classic signs of inflammation.

A. Body mass index greater than 35 kg/m2. B. Daily caloric intake of 3,500 calories. C. Client's expressed desire to lose 50 lb (22.7 kg). D. Body weight 10% over ideal body weight.

Correct Answer is A

Explanation

A. Body mass index greater than 35 kg/m². A BMI of ≥35 kg/m² indicates severe obesity and significantly increases the risk of chronic diseases such as hypertension, diabetes, and cardiovascular disease. Clients with a BMI ≥35, especially with comorbidities, should be referred for obesity counseling, lifestyle modifications, and possibly medical or surgical interventions.
B. Daily caloric intake of 3,500 calories. While consuming 3,500 calories daily may contribute to weight gain, caloric intake alone is not the primary indicator for an obesity counseling referral. BMI provides a more standardized measure of obesity risk.
C. Client's expressed desire to lose 50 lb (22.7 kg). A client’s motivation is important, but referral criteria for obesity counseling are based on clinical indicators like BMI rather than weight loss goals alone.
D. Body weight 10% over ideal body weight. Being 10% over ideal body weight does not necessarily indicate obesity. Obesity is typically defined as a BMI ≥30 kg/m², so this alone would not automatically warrant an obesity counseling referral.

View Question and Answer

Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.

Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today

Which is the function of the keratinocytes, a type of skin cell?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse should recognize which response is the immune system's reaction to a source of inflammation?

Correct Answer is D

Explanation

Which information is most important for the nurse to consider in determining a client's need for an obesity counseling referral? Reference Range: Body mass index (BMI) [18.0 kg/m2 to 24.9 kg/m

Correct Answer is A

Explanation

A client with cancer is receiving chemotherapy with a known vesicant. The client's IV has been in place for 72 hours. The nurse determines that a new IV site cannot be obtained, and leaves the present IV in place. Which is the greatest clinical risk related to this situation?

The nurse is assessing a client's skin and notices a raised nodule on the right forearm that is tender and filled with purulent secretions. The healthcare provider diagnosed the abscess as a furuncle. Which pathological etiology places the client at risk for the development of a furuncle?

A female client was horseback riding when her horse slipped and fell on her leg, crushing but not breaking it, and resulting in a large amount of edema over the crushed area. Which pathophysiological mechanism is responsible for the edema?

The nurse is caring for a client diagnosed with psoriasis vulgaris who is receiving a psoralen and ultraviolet A light (PUVA) treatment. Which assessment finding indicates that the client has been overexposed to the treatment?

Exhibits The nurse reviews the client's data. After collaboration with the wound care nurse, which intervention(s) should the primary nurse perform to reduce risk of skin injury? Select all that apply.

An older adult client comes to a free vaccination clinic requesting an influenza vaccination. Which action should the nurse implement?