ATI RN
Pathophysiology Exam 1 Quizlet
1. What is the primary action of bisphosphonates when prescribed to a patient with osteoporosis?
- A. It inhibits bone resorption, which helps maintain bone density.
- B. It stimulates new bone formation by increasing osteoblast activity.
- C. It increases calcium absorption in the intestines, which helps build stronger bones.
- D. It decreases calcium excretion by the kidneys, helping to maintain bone density.
Correct answer: A
Rationale: The correct answer is A: "It inhibits bone resorption, which helps maintain bone density." Bisphosphonates work by inhibiting bone resorption carried out by osteoclasts, thereby preventing the breakdown of bones and helping to maintain or increase bone density in patients with osteoporosis. Choices B, C, and D are incorrect because bisphosphonates do not directly stimulate new bone formation, increase calcium absorption in the intestines, or decrease calcium excretion by the kidneys.
2. A 70-year-old patient is seen in the family practice clinic. Which of the following vaccines should be administered to prevent shingles?
- A. Zoster vaccine
- B. Haemophilus influenzae Type b (Hib) vaccine
- C. Human papillomavirus (HPV) vaccine
- D. Pneumococcal polyvalent vaccine
Correct answer: A
Rationale: The correct answer is A: Zoster vaccine. The Zoster vaccine is recommended for the prevention of shingles in individuals aged 50 years and older. Shingles is caused by the reactivation of the varicella-zoster virus, the same virus that causes chickenpox. The vaccine helps reduce the risk of developing shingles and decreases the severity and duration of the illness if it occurs. Choices B, C, and D are incorrect: Haemophilus influenzae Type b (Hib) vaccine is used to prevent infections caused by Haemophilus influenzae type b, Human papillomavirus (HPV) vaccine is used to prevent HPV infections that can lead to cervical cancer and other cancers, and Pneumococcal polyvalent vaccine is used to protect against infections caused by the bacterium Streptococcus pneumoniae.
3. A 60-year-old male patient presents with severe and persistent pain in his left leg and hip that worsens with activity. After further evaluation, the patient is diagnosed with osteosarcoma. Which of the following is true about osteosarcoma?
- A. It is more common in children and young adults.
- B. Early diagnosis improves the prognosis.
- C. It is frequently located in the leg bones.
- D. All of the above are true.
Correct answer: D
Rationale: Osteosarcoma is a type of bone cancer that can be found in any bone but is most commonly located in the long bones of the legs. While it is more prevalent in children and young adults, it can also occur in older individuals like the 60-year-old male patient in this case. Early diagnosis is crucial for a better prognosis in osteosarcoma cases. Therefore, all the statements provided are true regarding osteosarcoma, making option D the correct answer. Option A is accurate as osteosarcoma is more common in children and young adults. Option B is correct as early diagnosis improves the prognosis. Option C is accurate as osteosarcoma is frequently located in the leg bones.
4. The nurse is closely following a patient who began treatment with testosterone several months earlier. When assessing the patient for potential adverse effects of treatment, the nurse should prioritize which of the following assessments?
- A. Skin inspection for developing lesions
- B. Lung function testing
- C. Assessment of serum calcium levels
- D. Assessment of arterial blood gases
Correct answer: C
Rationale: In patients receiving testosterone therapy, the nurse should prioritize assessing serum calcium levels. Testosterone therapy can lead to hypercalcemia, making the evaluation of serum calcium levels crucial. Skin inspection for developing lesions, lung function testing, and arterial blood gas assessment are not the priority assessments for potential adverse effects of testosterone therapy. Skin inspection may be relevant for dermatological side effects, lung function testing and arterial blood gas assessment are not directly related to the common side effects of testosterone therapy.
5. When a Tae Kwon Do (TKD) master applies downward pressure just above the elbow joint on an attacker who immediately collapses to the ground, which reflex is applicable to this example?
- A. Golgi tendon reflex
- B. Myotatic reflex
- C. Withdrawal reflex
- D. Crossed-extensor reflex
Correct answer: A
Rationale: The Golgi tendon reflex is the correct answer. This reflex protects the muscle and tendons from excessive force by causing the muscle to relax. In this scenario, the downward pressure applied just above the elbow joint triggers the Golgi tendon reflex, resulting in the attacker's collapse. The other options are incorrect: - The myotatic reflex (also known as the stretch reflex) is responsible for contracting a muscle in response to its stretch, not relaxing it. - The withdrawal reflex is a spinal reflex that moves a body part away from a painful stimulus, not directly related to the scenario described. - The crossed-extensor reflex is a reflex that occurs on the opposite side of the body in response to a withdrawal reflex, which is not the case in this situation.
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