HESI Fundamentals Practice Exam

Correct Answer: B

Rationale: Hinge joints, like the elbow, primarily allow movement in one direction, in this case, bending the arm. The correct action to exercise hinge joints is to bend the arm by flexing the ulnar to the humerus. This movement specifically targets the hinge joint and promotes its range of motion. Choices A, C, and D involve movements that do not specifically target hinge joints. Tilt the pelvis involves the ball-and-socket joints of the hip, turning the head involves the pivot joint of the neck, and extending the arm and rotating it in circles involve multiple joints including ball-and-socket and pivot joints.

Correct Answer: D

Rationale: Dry mucous membranes (D) are a common clinical finding indicating fluid volume deficit. In dehydration, there is insufficient fluid in the body, leading to dry mucous membranes due to decreased saliva production. Bounding pulse (A) is associated with fluid volume excess, not deficit. Bradycardia (B) and oliguria (C) are not typical clinical findings of fluid volume deficit but may be seen in fluid volume excess or other conditions.

Correct Answer: C

Rationale: The most accurate method to confirm the proper placement of a nasogastric tube is by examining a chest x-ray obtained after the tubing was inserted. This visual assessment allows healthcare providers to directly visualize the position of the tube in relation to anatomical landmarks, ensuring it is correctly placed in the stomach. Aspirating gastric contents or hearing air pass may provide some information but are not as definitive as a chest x-ray for confirming placement. Checking the remaining length of tubing is not a reliable method for determining proper placement as it does not indicate where the tip of the tube lies within the body.

Correct Answer: A

Rationale: When contaminated gloves are rolled inside-out, they are serving as a mode of transmission by carrying pathogens from the reservoir's portal of exit to a new portal of entry. This action increases the risk of transmitting infections from one person to another, emphasizing the importance of proper glove removal techniques to prevent the spread of pathogens. Choices B, C, and D are incorrect in this context. Portal of entry refers to the route through which a pathogen enters a susceptible host, reservoir is the habitat where the pathogen lives, grows, and multiplies, and portal of exit is the path through which a pathogen leaves its host.

Correct Answer: A

Rationale: The wife is correctly performing the passive range-of-motion exercises by holding the arm above and below the elbow. The nurse should acknowledge this correct technique (A). It is essential to keep the joint uncovered (B) during exercises, while ensuring the rest of the body remains covered for warmth and privacy. Choices (C) and (D) do not provide optimal support to the joint for effective movement.