Nokea
Tic douloureux is a (n) ___ cranial nerve disorder characterized by paroxysms of pain and burning sensations.
- A. 1st
- B. 7th
- C. 5th
- D. 8th
Correct Answer: C
Rationale: Tic douloureux, also known as trigeminal neuralgia, is a disorder of the 5th cranial nerve. This condition is characterized by intense, sharp, stabbing, and burning pain that follows the distribution of one or more branches of the trigeminal nerve. The pain occurs in short, sudden attacks or paroxysms, typically triggered by touching specific trigger points or by activities such as eating or speaking. It is important to correctly identify and diagnose the involvement of the 5th cranial nerve in such cases to provide appropriate treatment options for the patient.
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Which of the following types of cells is the immune system's shutoff mechanism?
- A. Plasma cells
- B. Suppressor T cells
- C. Helper T cells
- D. B lymphocytes
Correct Answer: B
Rationale: Suppressor T cells, also known as regulatory T cells, play a critical role in regulating the immune response by acting as the immune system's shutoff mechanism. These cells help maintain immune tolerance and prevent overactivation of the immune system, thereby preventing autoimmune reactions and excessive inflammation. Suppressor T cells exert their immunosuppressive effects by inhibiting the function of other immune cells, such as effector T cells and B cells, and helping to control the overall balance of the immune system.
Which combination of signs is commonly associated with glomerulonephritis?
- A. Mild proteinuria, hematuria, decreased urine output, and lethargy.
- B. Massive proteinuria, hematuria, increased output, and lethargy.
- C. Mild proteinuria, increased output, and lethargy.
- D. Massive proteinuria, decreased output, and hypotension.
Correct Answer: A
Rationale: Glomerulonephritis typically presents with mild to moderate proteinuria, hematuria, decreased urine output, and lethargy.
. Which of the following laboratory test results would the nurse expect to find in a client diagnosed with Hashimoto's thyroiditis?
- A. Thyroxine (T4), 22 ug/dl; triiodothyronine (T3), 320ng/dl; thyroid-stimulating hormone
- B. (TSH) undetectable
- C. T4, 22 ug/dl; T3, 200 ng/dl; TSH 0.1 uIU/ml
- D. T4, 2 ug/dl; t3, 35 ng/dl; TSH 45 uIU/ml
Correct Answer: E
Rationale: Hashimoto's thyroiditis is an autoimmune disorder that results in an underactive thyroid gland (hypothyroidism). The key lab findings typically seen in Hashimoto's thyroiditis include elevated thyroid antibodies (such as anti-thyroid peroxidase and anti-thyroglobulin antibodies), decreased levels of thyroxine (T4) and triiodothyronine (T3), and an elevated thyroid-stimulating hormone (TSH) level.
The beta subunit of human chorionic gonadotropin (HCG) is a useful surface marker in some malignant germ cell tumors (GCTs); it is secreted by syncytiotrophoblasts. In which of the following GCTs this surface marker is characteristically elevated?
- A. teratoma
- B. germinoma
- C. endodermal sinus tumor
- D. embryonal carcinoma
Correct Answer: D
Rationale: Embryonal carcinoma is strongly associated with elevated beta-HCG levels.
Which vein should be used first when initiating IV therapy?
- A. Jugular
- B. Basilic
- C. Brachiocephalic
- D. Axillary
Correct Answer: B
Rationale: When initiating IV therapy, the basilic vein is often used first due to its accessibility and size. The basilic vein is a common choice for venipuncture because it is located on the medial aspect of the arm and tends to be easily palpable. Additionally, the basilic vein is also less prone to complications such as nerve damage compared to other deeper veins like the jugular or brachiocephalic veins. Therefore, utilizing the basilic vein as the initial site for IV therapy is a safe and efficient choice.