A yeast infection is a type of vaginitis that is caused by a fungus known as

Correct Answer: C

Rationale: The correct answer is C: Candida albicans. Candida albicans is a fungus known to cause yeast infections. It is a common cause of vaginal yeast infections. Staphylococcus (A) and Streptococcus (D) are bacteria, not fungi, and are not associated with yeast infections. Pseudomonas (B) is a type of bacteria commonly found in soil, water, and plants, but it is not the cause of yeast infections. Therefore, the correct answer is Candida albicans as it is the specific fungus responsible for yeast infections.

Correct Answer: A

Rationale: The correct answer is A: Cartilage. Cartilage is the protective substance that covers the ends of bones, providing cushioning and reducing friction during movement. It also helps in absorbing shock and maintaining joint flexibility. Collagen (B) is a protein found in connective tissues but not the primary substance covering bone ends. Hormones (C) are signaling molecules that regulate various bodily functions, not related to bone protection. Minera (D) is a misspelling and not a relevant substance for bone protection.

Correct Answer: D

Rationale: The correct answer is D: Metabolism and growth. Thyroid hormones, such as T3 and T4, play a crucial role in regulating metabolism by influencing the body's energy production and consumption. They also help in the growth and development of various tissues and organs. This is supported by scientific research and physiological understanding. Explanation for other choices: A: Heart rate and respiration - While thyroid hormones can indirectly influence heart rate and respiration through their effects on metabolism, they are not the primary regulators of these functions. B: Bile production and potassium - Thyroid hormones do not have a direct role in regulating bile production or potassium levels in the body. C: Kidney and liver function - While thyroid hormones can affect kidney and liver function to some extent, their primary role lies in metabolism and growth regulation.

Correct Answer: D

Rationale: The correct answer is D, sharing a drug needle with an infected person. HIV can be transmitted through blood-to-blood contact, and sharing needles can lead to direct exchange of infected blood. Kissing, shaking hands, or sharing utensils do not involve direct blood contact, making them unlikely modes of HIV transmission.

Correct Answer: D

Rationale: The correct answer is D: Supine position. When using a pulse oximetry device, the supine position can lead to inaccurate readings due to reduced blood flow to the extremities. This position can affect the accuracy of oxygen saturation measurements. It is important to keep the patient in an upright or semi-upright position for accurate readings. Choices A, B, and C are incorrect because excessive fluids, loose tape, or avoiding certain actions are not directly related to the accuracy of pulse oximetry readings.