Specific receptor defects occur in:
- A. Guillain-Barre syndrome
- B. Myasthenia gravis
- C. Graves' disease
- D. Ulcerative colitis
Correct Answer: B
Rationale: Myasthenia gravis is characterized by antibodies against acetylcholine receptors at the neuromuscular junction, leading to muscle weakness.
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ECG
- A. Bifid P waves in large VSD
- B. Complete Ht block in cyanotic attacks of fallots
- C. RBBB in Ebstein anomaly
- D. Right axis deviation in tricuspid atresia
Correct Answer: C
Rationale: In Ebstein's anomaly, right bundle branch block (RBBB) is commonly seen on ECG.
The nurse is assessing a client who has tinea pedis. Which question will allow the nurse to gather further information about this condition?
- A. Do you see any improvement when using tolnaftate?
- B. Have you been avoiding wearing tight-fitting shoes?
- C. Are you experiencing pain or itching in your feet?
- D. How often do you wash your feet and change socks?
Correct Answer: A
Rationale: Tolnaftate is an antifungal medication. Asking about its effectiveness helps assess the client's treatment response and adherence.
The following factors trigger renin secretion:
- A. Hyponatremia
- B. ACTH
- C. Hypovolemia
- D. ADH
Correct Answer: C
Rationale: Hypovolemia: Renin is secreted by the kidneys in response to low blood volume (hypovolemia), initiating the renin-angiotensin-aldosterone system to conserve sodium and increase blood pressure.
Which type of shock is characterized by a hypersensitivity reaction causing massive vasodilation and capillary leaks, which may occur with drug or latex allergy?
- A. Neurogenic
- B. Cardiogenic
- C. Hypovolemic
- D. Anaphylactic
Correct Answer: D
Rationale: Anaphylactic shock results from extreme allergy or hypersensitivity to a foreign substance. Neurogenic shock results from loss of neuronal control, such as the interruption of neuronal transmission that occurs from a spinal cord injury. Cardiogenic shock is decreased cardiac output. Hypovolemic shock is a reduction in the size of the vascular compartment, decreasing blood pressure, and low central venous pressure.
A client with cholelithiasis has a gallstone lodged in the common bile duct and is unable to eat or drink without becoming nauseated and vomiting. Which finding should the nurse report to the healthcare provider.
- A. Belching
- B. Amber urine
- C. Yellow sclera
- D. Flatulence
Correct Answer: C
Rationale: Yellow sclera indicates jaundice, which is a sign of bile duct obstruction and requires immediate medical attention.