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Diagnosis of obstructed labour (Abdominal examination):
- A. Palpation of the abdomen
- B. Tenderness in the lower abdomen
- C. Softening of the cervix
- D. All of the above
Correct Answer: A
Rationale: The correct answer is A: Palpation of the abdomen. To diagnose obstructed labor, palpation of the abdomen is essential to assess the position and size of the fetus, as well as the presence of uterine contractions and fetal heart rate. Tenderness in the lower abdomen may indicate other conditions, not necessarily obstructed labor. Softening of the cervix is a sign of impending labor but not specific to obstructed labor. Therefore, palpation of the abdomen is the most appropriate choice for diagnosing obstructed labor.
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In laryngeal stridor, the noise is more marked during
- A. Inspiration
- B. Expiration
- C. Feeding
- D. Play
Correct Answer: A
Rationale: The correct answer is A: Inspiration. Laryngeal stridor is caused by narrowed or obstructed airway, resulting in noisy breathing. During inspiration, the air is drawn through the narrowed larynx, causing the stridor sound. During expiration, the air is leaving the body, so the noise may not be as prominent. Choices C and D, feeding and play, are unrelated to the respiratory process and do not affect the presence of laryngeal stridor.
A general principle in surgical oncology is that the best approach to curative surgery in a fixed tumor requires
- A. En bloc resection
- B. Adjuvant therapies
- C. Neoadjuvant therapies
- D. Elective lymph node dissection
Correct Answer: D
Rationale: The correct answer is D: Elective lymph node dissection. This is because elective lymph node dissection helps to remove potentially cancerous lymph nodes, aiding in staging and ensuring complete tumor removal, thus improving the chances of curative surgery. En bloc resection (A) is important but may not always be feasible in fixed tumors. Adjuvant therapies (B) are used after surgery, not as the primary approach. Neoadjuvant therapies (C) are given before surgery to shrink tumors, not specifically for fixed tumors.
T. O. is a 44-year-old female patient who presents for evaluation of sudden, severe upper abdominal pain. She is clear about the onset, which was profound and occurred approximately one hour ago. She denies that the onset had any relationship to food or eating, and she denies nausea or vomiting. On examination, she is lying on her right side with her hips and knees flexed to draw her knees to her chest. Vital signs are stable, but examination reveals involuntary guarding. The abdomen is painful and tympanic to percussion in all quadrants. CBC reveals a white blood cell count of 15,600L. The AGACNP suspects
- A. Dissecting aortic aneurysm
- B. Acute pancreatitis
- C. Perforated peptic ulcer
- D. Mallory-Weiss tear
Correct Answer: B
Rationale: The correct answer is B: Acute pancreatitis. The clinical presentation of sudden, severe upper abdominal pain not related to food intake, along with the patient's position (lying on right side with hips and knees flexed), and presence of involuntary guarding suggest acute pancreatitis. The elevated white blood cell count indicates an inflammatory process. Dissecting aortic aneurysm (A) typically presents with abrupt, severe chest or back pain radiating to the abdomen, with signs of shock. Perforated peptic ulcer (C) presents with sudden, severe abdominal pain often related to food intake, with signs of peritonitis. Mallory-Weiss tear (D) presents with hematemesis after forceful or prolonged vomiting.
Hepatic encephalopathy is a clinical syndrome seen in patients with chronic liver disease its presentation may range from mild personality changes, to psychosis, to coma. The primary chemical mediators of hepatic encephalopathy include all of the following except
- A. Gamma-aminobutyric acid (GABA)
- B. Ammonia
- C. False neurotransmitters
- D. Serotonin
Correct Answer: D
Rationale: The correct answer is D: Serotonin. Serotonin is not a primary chemical mediator of hepatic encephalopathy. The main chemical mediators involved in hepatic encephalopathy are A: Gamma-aminobutyric acid (GABA), B: Ammonia, and C: False neurotransmitters. GABA plays a role in inhibiting neurotransmission, ammonia is a key factor in the pathogenesis of hepatic encephalopathy, and false neurotransmitters are produced due to altered amino acid metabolism in the liver. Serotonin is not a key player in the development of hepatic encephalopathy, hence it is the correct answer.
Teratogenic causes of congenital abnormalities include
- A. Medical conditions and pesticides
- B. Prescription drugs and chromosomes
- C. Radiation and substances of abuse
- D. Disordered genes and medical conditions
Correct Answer: C
Rationale: The correct answer is C because radiation and substances of abuse are known teratogenic causes of congenital abnormalities. Radiation exposure can lead to genetic mutations and developmental issues in the fetus. Substances of abuse like alcohol, tobacco, and illicit drugs can also negatively impact fetal development.
A: Medical conditions and pesticides may have negative effects on pregnancy outcomes, but they are not typically classified as teratogenic causes of congenital abnormalities.
B: Prescription drugs can be teratogenic in some cases, but not all prescription drugs have harmful effects on fetal development. Chromosomes are not typically considered teratogenic causes.
D: Disordered genes can lead to congenital abnormalities, but they are not classified as teratogenic causes. Medical conditions are not universally teratogenic.