ATI RN
Psychotropic Medications Medcomm Quiz Questions
Question 1 of 5
Psychiatric medications work by altering the way the brain produces, stores, and releases _____________________.
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 2 of 5
The functional units of the musculoskeletal system are the:
Correct Answer: A
Rationale: The correct answer is A: Joints. Joints are the functional units of the musculoskeletal system because they are the points where two or more bones meet and allow for movement. They are essential for flexibility and mobility. Bones (B) provide structure and support, muscles (C) generate movement, and tendons (D) connect muscles to bones, but joints are specifically responsible for facilitating movement and range of motion in the musculoskeletal system.
Question 3 of 5
The nurse is explaining the mechanism of the growth of long bones to a mother of a toddler. Where does lengthening of the bones occur?
Correct Answer: C
Rationale: The correct answer is C: Epiphyses. Epiphyses are the ends of long bones where longitudinal growth occurs through the proliferation of cartilage cells in the growth plate. This process is known as endochondral ossification. Bursa (A) is a fluid-filled sac near joints, not involved in bone growth. Calcaneus (B) is a bone in the heel, not directly related to longitudinal bone growth. Tuberosities (D) are bony prominences for muscle attachment, not sites of bone lengthening.
Question 4 of 5
A patient is able to flex his right arm forward without difficulty or pain but is unable to abduct his arm because of pain and muscle spasms. The nurse should suspect:
Correct Answer: B
Rationale: The correct answer is B: Rotator cuff lesions. The patient's ability to flex the arm without difficulty indicates intact muscles involved in flexion, ruling out crepitation. Inability to abduct due to pain and spasms points to rotator cuff involvement, not shoulder dislocation. Rheumatoid arthritis typically presents with symmetrical joint involvement, unlike the unilateral symptoms described.
Question 5 of 5
A mother brings her newborn baby boy in for a checkup; she tells the nurse that he does not seem to be moving his right arm as much as his left and that he seems to have pain when she lifts him up under the arms. The nurse suspects a fractured clavicle and would observe for:
Correct Answer: C
Rationale: The correct answer is C: Limited range of motion during the Moro reflex. This reflex involves the baby's response to a sudden loss of support or a loud noise, where they spread their arms and then bring them back in. In a newborn with a fractured clavicle, limited range of motion during the Moro reflex may indicate pain or discomfort in the affected arm, leading to decreased movement. Choice A, Negative Allis test, is not relevant to assessing a fractured clavicle in a newborn. Choice B, Positive Ortolani sign, is related to hip dislocation, not a fractured clavicle. Choice D, Limited range of motion during Lasègue test, is used to assess for sciatic nerve irritation in adults and is not applicable to a newborn with a suspected fractured clavicle.