______ burns involve only the epidermis.
partial thickness
First-degree
Second-degree
Third-degree
The Correct Answer is B
A. partial thickness: Partial-thickness burns extend into the dermis and can damage nerve endings, causing blisters and more intense pain. They are deeper than burns that affect only the epidermis.
B. First-degree: First-degree burns affect only the epidermis, causing redness, minor swelling, and pain. The deeper dermal structures remain intact, allowing for full recovery without scarring.
C. Second-degree: Second-degree burns involve both the epidermis and part of the dermis. They often produce blisters, severe pain, and potential scarring, making them more severe than first-degree burns.
D. Third-degree: Third-degree burns extend through the epidermis and dermis, potentially affecting underlying tissues. They may appear white, brown, or charred and often result in nerve destruction and permanent tissue damage.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is E
Explanation
A. Merocrine; holocrine:Merocrine glands secrete their products via exocytosis, and holocrine glands release entire cells, but this distinction does not directly describe mucus versus watery secretions.
B. Endocrine; exocrine:Endocrine glands release hormones into the bloodstream, and exocrine glands secrete onto surfaces or into ducts. This classification does not specify the type of fluid produced, such as mucus or watery secretions.
C. Serous; mucous:Serous glands produce a watery, protein-rich secretion, while mucous glands produce thick, sticky mucus. This reverses the secretion types described.
D. Apocrine; mixed:Apocrine glands release portions of cells along with secretions, and mixed glands can produce both mucus and serous products. While related, this does not Correct answer the distinction between mucus and watery fluids.
E. Mucous; serous:Mucous glands secrete mucus, which combines with water to form a thick, sticky product, whereas serous glands produce a relatively watery, enzyme-rich fluid. This accurately distinguishes the two secretion types.
Correct Answer is B
Explanation
False:Pyruvic acid is converted into lactic acid only under anaerobic conditions, when oxygen is insufficient for the mitochondria to carry out aerobic respiration. When oxygen is present, pyruvic acid enters the mitochondria and is converted into acetyl CoA, which then enters the Krebs cycle for aerobic respiration. Lactic acid formation does not occur under these oxygen-rich conditions.
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