The safest type of razor for a nursing assistant to use on residents is

Correct Answer: B

Rationale: The correct answer is B: An electric razor. This is the safest option because it reduces the risk of cuts and injuries to residents due to its design and operation. Electric razors have a protective guard that minimizes direct contact with the skin, making them ideal for use by nursing assistants. Choice A, a safety razor, may still pose a risk of cuts if not used properly. Choice C, a disposable razor, lacks the protective guard of an electric razor, increasing the risk of accidental cuts. Choice D, a straight edge razor, is the most dangerous option as it requires skill and precision to use without causing harm to the resident.

Correct Answer: B

Rationale: The correct answer is B: Texas catheter. This type of catheter, also known as a condom catheter, is designed to fit over the penis externally rather than being inserted internally like the other types listed. It is commonly used for male patients who have urinary incontinence. The other choices, A: Internal catheter, C: Straight catheter, and D: Indwelling catheter, all refer to catheters that are inserted into the body through the urethra or another access point, which is not the case with a Texas catheter.

Correct Answer: C

Rationale: The correct answer is C because the integumentary system, which includes the skin, hair, and nails, acts as a protective barrier for internal organs from physical injury, pathogens, and harmful UV radiation. The skin's multiple layers provide a tough, waterproof covering that shields organs underneath. Option A is incorrect because waste excretion is primarily carried out by the urinary system. Option B is incorrect as the production of vitamin C occurs in the liver and some other body tissues, not the integumentary system. Option D is incorrect as the integumentary system helps regulate body temperature through processes like sweating and shivering, rather than directly increasing body temperature.

Correct Answer: C

Rationale: The correct answer is C: Under the tongue. Nitroglycerin in pill form is typically taken sublingually, which means under the tongue, to quickly enter the bloodstream and provide rapid relief for chest pain associated with angina. By placing it under the tongue, it can be absorbed directly into the bloodstream through the mucous membranes, allowing for faster onset of action. A: Nitroglycerin is not typically taken as injections, as the pill form is more common for oral administration. B: Nitroglycerin is not administered intravenously as it can cause rapid and severe drops in blood pressure. D: Rectal administration of nitroglycerin is not common practice and is not the recommended route for its administration due to slower absorption compared to sublingual administration.

Correct Answer: B

Rationale: The correct answer is B: Adduction. Adduction refers to the movement of a body part toward the body's midline. This movement reduces the angle between the body part and the midline. It is the opposite of abduction, which is the movement away from the body's midline. Choice A (Addition) is not a term used in anatomy for describing body movements. Choice C (Agitation) is a term unrelated to body movements. Choice D (Abduction) is the opposite movement of what is described in the question. Therefore, the correct choice is B (Adduction) as it aligns with the specific movement described in the question.