Nokea
Which of the following parts of neuron transmits impulses away from the cell body?
- A. Dendrite
- B. . Neurolemma
- C. Axon
- D. Synapse
Correct Answer: C
Rationale: The correct answer is C: Axon. The axon is the part of the neuron that transmits impulses away from the cell body towards other neurons, muscles, or glands. Its structure allows for the rapid transmission of electrical signals.
Rationale:
1. Dendrites receive signals and transmit them towards the cell body, so A is incorrect.
2. Neurolemma is the outermost layer of a Schwann cell, not a part of the neuron responsible for transmitting impulses, so B is incorrect.
3. The synapse is the junction between two neurons where communication occurs, not a part of the neuron transmitting impulses, so D is incorrect.
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Mrs. Santos, a 75-year old patient with type II diabetes is in emergency department with signs of hyperglycemic, hyperosmolar nonketotic (HHNK) coma. What assessment finding should the nurse expect?
- A. Fruity odor of the breath
- B. shallow, deep respirations
- C. severe dehydration
- D. profuse sweating
Correct Answer: C
Rationale: The correct answer is C: severe dehydration. In HHNK coma, the body tries to eliminate excess glucose through frequent urination, leading to dehydration. This results in decreased blood volume, causing hypotension and tachycardia. Signs include dry mucous membranes, poor skin turgor, and concentrated urine output. Fruity odor of the breath (A) is associated with diabetic ketoacidosis, not HHNK coma. Shallow, deep respirations (B) and profuse sweating (D) are not typically associated with HHNK coma.
Which of the following is an early sign of anemia?
- A. Palpitations
- B. Pallor
- C. Glossitis
- D. Weight loss
Correct Answer: B
Rationale: The correct answer is B: Pallor. Pallor, which refers to paleness of the skin, is an early sign of anemia due to decreased red blood cell levels. Anemia causes reduced oxygen delivery to tissues, leading to paleness. Palpitations (A) may occur in anemia but are not an early sign. Glossitis (C) and weight loss (D) are not typically early signs of anemia and are more commonly associated with other health conditions.
The nursing care for the client in addisonian crisis should include which of the following interventions?
- A. Encouraging independence with activities of daily living (ADL)
- B. Allowing ambulation as tolerated
- C. Offering extra blankets and raising the heat in the room to keep the client warm
- D. Placing the client in a private room
Correct Answer: C
Rationale: The correct answer is C because in Addisonian crisis, the client experiences adrenal insufficiency leading to decreased cortisol levels and impaired stress response. Offering extra blankets and raising room temperature helps prevent hypothermia, as clients in crisis are unable to regulate body temperature. Encouraging independence with ADLs (choice A) and ambulation (choice B) are not priorities as the client is in a critical state. Placing the client in a private room (choice D) is not directly related to managing Addisonian crisis.
Why is heart biopsy performed throughout a clients lifetime after heart transplantation?
- A. To detect rejection
- B. To check the heart functionality
- C. To check rate of the heartbeat
- D. To check for heart tumor CARING FOR CLIENTS WITH HYPERTENSION
Correct Answer: A
Rationale: The correct answer is A: To detect rejection. After heart transplantation, heart biopsy is performed to monitor for rejection, a common complication. Tissue samples are examined for signs of rejection, such as inflammation. This is crucial for timely intervention to prevent rejection-related complications.
Other choices are incorrect:
B: Heart functionality is typically assessed through imaging tests like echocardiograms, not biopsy.
C: Heart rate monitoring can be done through non-invasive methods like electrocardiograms, not biopsy.
D: Checking for heart tumors is not a primary purpose of heart biopsy post-transplantation.
How many drops per minute should be delivered?
- A. 6
- B. 17
- C. 50
- D. 100
Correct Answer: B
Rationale: The correct answer is B: 17 drops per minute. To calculate the correct drip rate, you need to use the formula: (Volume to be infused in mL / Time in minutes) x Drop factor. In this case, if the volume to be infused is 100 mL and the time is 60 minutes with a drop factor of 20, the calculation would be: (100 / 60) x 20 = 33.33 drops per minute. Since we cannot deliver fractional drops, the closest whole number is 17 drops per minute. This ensures the correct delivery rate for the medication.
Choice A (6 drops per minute) is incorrect as it would be too slow and may not deliver the medication effectively. Choice C (50 drops per minute) and Choice D (100 drops per minute) are incorrect as they would both deliver the medication too quickly, potentially causing harm to the patient. The correct answer, 17 drops per minute, ensures a safe and accurate delivery rate