Nokea
Nurse Raymond is handling a group of student nurses and he is teaching them about fluids and electrolytes. He is correct when he says that a substance moves from an area of higher concentration, this is:
- A. osmosis
- B. filtration
- C. diffusion
- D. active transport
Correct Answer: C
Rationale: Correct Answer: C - Diffusion
Rationale: Diffusion is the movement of a substance from an area of higher concentration to an area of lower concentration. This process occurs naturally to achieve equilibrium. In the context of fluids and electrolytes, this movement helps maintain balance within the body. Unlike osmosis, which involves the movement of water molecules across a semi-permeable membrane, diffusion applies to the movement of all types of substances. Filtration involves the movement of substances through a barrier under pressure, and active transport requires energy to move substances against a concentration gradient. Therefore, the correct answer is diffusion as it aligns with the principle of movement from high to low concentration for achieving equilibrium.
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The patient is dangling at the bedside and states, “Oh, my stomach is tearing open.” Which of the following actions should the nurse immediately take when dehiscence occurs?
- A. Have patient sit upright in a chair.
- B. Have patient lie down.
- C. Slow IV fluids.
- D. Obtain a sterile suture set.
Correct Answer: B
Rationale: The correct answer is B: Have patient lie down. When a patient experiences dehiscence (surgical wound separation), lying down helps reduce tension on the wound, minimizing the risk of further tearing. This position also allows the nurse to assess the wound properly. Choice A is incorrect because sitting upright can increase intra-abdominal pressure, worsening the dehiscence. Choice C is incorrect as slowing IV fluids is not a priority in managing dehiscence. Choice D is incorrect because obtaining a sterile suture set should only be done by a healthcare provider and is not the immediate action needed for dehiscence.
A seizure characterized by loss of consciousness and tonic spasms of the trunk and extremities rapidly followed by repetitive generalized clonic jerking is classified as:
- A. Focal seizure
- B. Jacksonian seizure
- C. Generalized seizure
- D. Partial seizure
Correct Answer: C
Rationale: The correct answer is C: Generalized seizure. This type of seizure involves both hemispheres of the brain from the onset, leading to loss of consciousness and tonic-clonic jerking. It is characterized by widespread, synchronized electrical discharges.
A: Focal seizures start in one area of the brain, leading to localized symptoms without loss of consciousness.
B: Jacksonian seizures are a type of focal seizure characterized by a progression of jerking movements from one body part to another.
D: Partial seizures involve only one part of the brain, leading to localized symptoms or altered consciousness without loss of awareness.
Which of the following explanations by the nurse will help a patient understand what to expect during a bronchoscopy?
- A. “The physician will place a small tube through your nose or mouth and into the bronchi to look at your airways.”
- B. “You will breathe a radioactive substance that will show diseased areas in your lungs.”
- C. “You will need to drink a thick white liquid, which will be opaque on the x-rays.”
- D. “A die will be injected to help visualize the structures of the bronchioles. Do you have any allergies?”
Correct Answer: A
Rationale: The correct answer is A because it accurately describes the procedure of bronchoscopy. The nurse's explanation should focus on the insertion of a small tube through the nose or mouth into the bronchi to visualize the airways. This information helps the patient understand the basic process and what to expect during the procedure.
Choice B is incorrect as bronchoscopy does not involve breathing a radioactive substance to show diseased areas in the lungs. Choice C is also incorrect as there is no requirement to drink a thick white liquid for bronchoscopy. Choice D is incorrect as dye injection is not a standard part of bronchoscopy, and asking about allergies to dye is irrelevant in this context.
A client diagnosed with DIC is ordered heparin. What is the reason for this medication?
- A. Prevent clot formation
- B. Increase clot formation
- C. Increased blood flow to target organs
- D. Decrease blood flow to target organs
Correct Answer: A
Rationale: The correct answer is A: Prevent clot formation. Heparin is an anticoagulant that inhibits the formation of blood clots. In DIC (Disseminated Intravascular Coagulation), there is excessive clotting throughout the body, leading to organ damage. By administering heparin, we aim to prevent further clot formation and reduce the risk of complications.
Choice B is incorrect because heparin does not increase clot formation; it works to inhibit clotting. Choice C is incorrect as heparin does not directly increase blood flow to target organs. Choice D is also incorrect as heparin does not decrease blood flow to target organs; its primary role is anticoagulation.
The standing orders for a patient include acetaminophen 650 mg every 4 hours prn for headache. After assessing the patient, the nurse identifies the need for headache relief and determines that the patient has not had acetaminophen in the past 4 hours. Which action will the nurse take next?
- A. Administer the acetaminophen.
- B. Notify the health care provider to obtain a verbal order.
- C. Direct the nursing assistive personnel to give the acetaminophen.
- D. Perform a pain assessment only after administering the acetaminophen.
Correct Answer: A
Rationale: The correct answer is A: Administer the acetaminophen. The rationale is as follows:
1. The patient has a standing order for acetaminjson for headache relief.
2. The nurse has assessed that the patient needs headache relief and has not had the medication in the past 4 hours.
3. Administering the acetaminophen aligns with the prescribed treatment plan and the patient's needs.
Summary:
- Option B is incorrect because obtaining a verbal order is not necessary when there is a standing order.
- Option C is incorrect as nursing assistive personnel should not administer medications without direct supervision.
- Option D is incorrect as pain assessment should precede medication administration to ensure appropriateness.