Nokea
A characteristic of monozygotic twins is that
- A. They are always of the same sex
- B. They share a similar fingerprint pattern
- C. They have different blood groups
- D. Superfetation is a common finding
Correct Answer: A
Rationale: The correct answer is A because monozygotic twins, also known as identical twins, develop from a single fertilized egg and share the same genetic material. This results in them always being of the same sex. Choice B is incorrect because fingerprint patterns are not solely determined by genetics. Choice C is incorrect because monozygotic twins will have the same blood group since they share the same DNA. Choice D is incorrect because superfetation, the fertilization of multiple eggs at different times during the same pregnancy, is not common in monozygotic twins.
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Mrs. Coates is a 65-year-old female who is on postoperative day 1 following a duodenal resection for a bleeding ulcer. She had an uneventful immediate postoperative course, but throughout the course of day 1 she has complained of a mild abdominal discomfort that has progressed throughout the day. This evening the AGACNP is called to the bedside to evaluate the patient for persistent and progressive discomfort. Likely causes of her symptoms include all of the following except
- A. Colic due to return of peristalsis
- B. Leakage from the duodenal stump
- C. Gastric retention
- D. Hemorrhage
Correct Answer: C
Rationale: The correct answer is C: Gastric retention. Mrs. Coates' symptoms of persistent and progressive discomfort are not likely due to gastric retention because she underwent a duodenal resection for a bleeding ulcer, which would bypass the stomach. Therefore, gastric retention is not a possible cause.
A: Colic due to return of peristalsis is a possible cause as peristalsis returning after surgery can cause discomfort.
B: Leakage from the duodenal stump is a possible cause as it can lead to abdominal discomfort postoperatively.
D: Hemorrhage is a possible cause given her history of bleeding ulcer and surgery.
S. R. is a 51-year-old male patient who is being evaluated for fatigue. Over the last few months he has noticed a marked decrease in activity tolerance. Physical examination reveals a variety of ecchymoses of unknown origin. The CBC is significant for a Hgb of 10.1 gdL, an MCV of 72 fL and a platelet count of 65,000L the remainder of the CBC is normal. Coagulation studies are normal, but bleeding time is prolonged. The AGACNP recognizes that initial management of this patient will include
- A. Avoidance of elective surgery and nonessential medications
- B. Prednisone 60 mg daily until platelets normal
- C. Monoclonal antibody therapy such as rituximab
- D. Splenectomy
Correct Answer: D
Rationale: The correct answer is D: Splenectomy. In this case, the patient presents with signs of immune thrombocytopenic purpura (ITP) with low platelet count and bleeding time prolongation. Splenectomy is the definitive treatment for ITP as the spleen is the site of platelet destruction. Avoiding elective surgery and medications (choice A) may be necessary to prevent bleeding complications but do not address the underlying issue. Prednisone (choice B) is used for acute treatment but not for long-term management. Monoclonal antibody therapy (choice C) is an option for refractory cases but not first-line therapy.
The term used to describe pure fetal blood loss that occurs following a ruptured vasa praevia is
- A. Fetal extra-versation
- B. Fetal exsanguination
- C. Velamentous bleeding
- D. Fetal hemorrhage
Correct Answer: B
Rationale: The correct answer is B: Fetal exsanguination. This term accurately describes the process of pure fetal blood loss following a ruptured vasa praevia. Exsanguination refers to severe blood loss leading to death. In this context, it specifically denotes the loss of fetal blood due to the rupture of vasa praevia, which can be fatal for the fetus.
A: Fetal extra-versation is not a recognized medical term and does not accurately describe the scenario presented in the question.
C: Velamentous bleeding refers to a condition where fetal blood vessels are unprotected by the umbilical cord and run through the amniotic membranes, not specifically related to ruptured vasa praevia.
D: Fetal hemorrhage is a general term for fetal blood loss and does not specifically address the situation of pure fetal blood loss following a ruptured vasa praevia.
Complications of uterine rupture:
- A. Hemorrhage, uterine atony, infection, peritonitis
- B. Preterm labor, cord prolapse, uterine prolapse
- C. Fetal distress, placental abruption, uterine rupture
- D. All of the above
Correct Answer: A
Rationale: The correct answer is A because uterine rupture can lead to severe complications such as hemorrhage from blood vessels tearing, uterine atony causing failure of the uterus to contract, infection due to exposure of internal tissues, and peritonitis from inflammation of the abdominal lining. Choices B and C are incorrect as they list complications that are not directly associated with uterine rupture. Preterm labor, cord prolapse, uterine prolapse, fetal distress, placental abruption are potential consequences of other obstetric complications but not specifically uterine rupture. Therefore, choice A is the most appropriate answer given the context of uterine rupture.
Which one of the following clinical features denotes cardiac disease grade III?
- A. Patient is comfortable even at rest
- B. Patient is asymptomatic initially
- C. Marked limitation of physical activity
- D. Absolute limitation of physical activity
Correct Answer: C
Rationale: The correct answer is C: Marked limitation of physical activity. In cardiac disease grading, grade III signifies marked limitation of physical activity. This indicates that the patient experiences symptoms with less than ordinary physical activity, such as shortness of breath or chest pain. This grade reflects significant impairment in daily activities due to cardiac issues.
A: Patient is comfortable even at rest - This describes grade I, where patients are comfortable at rest.
B: Patient is asymptomatic initially - This describes pre-symptomatic stages before any limitations in physical activity.
D: Absolute limitation of physical activity - This is more severe and indicative of grade IV, where any physical activity causes discomfort or symptoms.