ATI RN
WGU Pathophysiology Final Exam
1. What is the main function of the mitochondria in a cell?
- A. To produce energy in the form of ATP
- B. To synthesize proteins
- C. To store genetic information
- D. To regulate cell growth
Correct answer: A
Rationale: The correct answer is A: To produce energy in the form of ATP. Mitochondria are known as the powerhouse of the cell because they are responsible for producing energy in the form of ATP through a process called cellular respiration. This energy is essential for various cellular activities. Choice B is incorrect because protein synthesis primarily occurs in the ribosomes. Choice C is incorrect as the genetic information is stored in the cell's nucleus. Choice D is incorrect as the regulation of cell growth involves various other organelles and processes within the cell.
2. A male patient is being treated with testosterone gel for hypogonadism. What important instruction should the nurse provide regarding the application of this medication?
- A. Apply the gel to the chest or upper arms.
- B. Apply the gel to the lower abdomen or thighs.
- C. Apply the gel to the face and neck.
- D. Apply the gel to the scalp and back.
Correct answer: A
Rationale: The correct answer is to apply the testosterone gel to the chest or upper arms. This is important to minimize the risk of transfer to others. Applying the gel to the lower abdomen, thighs, face, or neck can increase the risk of transfer to others, especially women and children who should avoid contact with testosterone gel. Applying it to the scalp and back is not recommended as these areas are not suitable for absorption of the medication.
3. A 21-year-old female was recently diagnosed with iron deficiency anemia. In addition to fatigue and weakness, which of the following clinical signs and symptoms would she most likely exhibit?
- A. Hyperactivity
- B. Spoon-shaped nails
- C. Gait problems
- D. Petechiae
Correct answer: B
Rationale: The correct answer is B: Spoon-shaped nails. In iron deficiency anemia, spoon-shaped nails (koilonychia) are a common symptom due to changes in the nail bed. This condition is known as Plummer-Vinson syndrome. While fatigue and weakness are common in iron deficiency anemia, hyperactivity (choice A) is not typically associated with this condition. Gait problems (choice C) and petechiae (choice D) are more commonly seen in other medical conditions and are not characteristic of iron deficiency anemia.
4. A client with chronic obstructive pulmonary disease (COPD) is admitted to the hospital for pneumonia. Which intervention should the nurse prioritize?
- A. Administer bronchodilators as prescribed.
- B. Monitor oxygen saturation levels continuously.
- C. Administer intravenous antibiotics as prescribed.
- D. Provide respiratory therapy treatments as needed.
Correct answer: C
Rationale: Administering IV antibiotics is crucial for treating pneumonia in a client with COPD. Pneumonia is an infection of the lungs that requires prompt antibiotic therapy to prevent complications and improve outcomes. While bronchodilators may help with COPD symptoms, in the case of pneumonia, addressing the infection is the priority. Continuous monitoring of oxygen saturation is important, but administering antibiotics to treat the underlying infection takes precedence. Respiratory therapy treatments can be beneficial, but they are not the initial priority when managing pneumonia in a client with COPD.
5. Which of the following imbalances is found in clients with syndrome of inappropriate antidiuretic hormone (SIADH)?
- A. Decreased insulin production
- B. Decreased antidiuretic hormone (ADH) production
- C. Increased secretion of antidiuretic hormone (ADH)
- D. Increased production of insulin
Correct answer: C
Rationale: The correct answer is C: Increased secretion of antidiuretic hormone (ADH). Syndrome of inappropriate antidiuretic hormone (SIADH) is characterized by the excessive release of ADH, which leads to water retention and dilution of blood sodium levels. Choices A, B, and D are incorrect because SIADH is not associated with decreased insulin production, decreased ADH production, or increased production of insulin.
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