Hidden or ______ blood is found inside stool with a microscope or a special chemical test.

Correct Answer: A

Rationale: The correct answer is A: Occult. Occult blood refers to hidden blood that is not visible to the naked eye and can only be detected through microscopic or chemical testing. This term is commonly used in medical contexts to describe blood in stool that may indicate gastrointestinal issues or bleeding. Choice B, Hemoccult, is a specific brand name for a fecal occult blood test, so it is not a general term for hidden blood in stool. Choice C, Toxic, and choice D, Pathogenic, are unrelated to the presence of hidden blood in stool and do not describe this specific medical condition.

Correct Answer: C

Rationale: The correct answer is C: Plasma. Plasma constitutes about 55% of blood volume and is a fluid component that carries various substances such as nutrients, hormones, and waste products. Erythrocytes (A) are red blood cells and make up about 40-45% of blood volume. Leukocytes (B) are white blood cells and only account for a small percentage of blood volume. Platelets (D) are cell fragments involved in blood clotting and make up a very small percentage of blood volume. Plasma is the correct answer because it is the largest component of blood by volume and carries out essential functions in the body.

Correct Answer: A

Rationale: The correct answer is A because normal age-related changes in the musculoskeletal system typically involve muscles weakening and losing tone. This is due to factors such as decreased physical activity, hormonal changes, and reduced muscle mass. Choice B is incorrect because while bones do require calcium for strength and density, age-related changes typically involve bone loss rather than gain. Choice C is incorrect as muscle mass tends to decrease with age, not increase. Choice D is incorrect as age-related changes in the musculoskeletal system do not directly cause weight gain, although decreased muscle mass and physical activity can contribute to weight gain.

Correct Answer: C

Rationale: The correct answer is C: Medication or surgery. Seizures are caused by abnormal electrical activity in the brain, and treatment usually involves medication to control or prevent seizures. Surgery may also be an option for some cases, such as when medication is not effective or when there is a specific brain abnormality causing the seizures. Range of motion exercises (A), restraining the resident (B), and physical therapy (D) are not appropriate treatments for seizures as they do not address the underlying neurological cause.

Correct Answer: A

Rationale: The correct answer is A: The person is obese. Obesity is a major risk factor for developing type 2 diabetes as excess body fat can lead to insulin resistance. This impairs the body's ability to regulate blood sugar levels, increasing the likelihood of diabetes. Malnourishment (choice B) is not a direct risk factor for diabetes. Incontinence (choice C) and chronic obstructive pulmonary disorder (choice D) are not typically associated with an increased risk of diabetes. Therefore, choice A is the most relevant and likely condition to make a person more susceptible to diabetes.