A 20-year-old woman is brought to the physician for a routine health maintenance examination. Her last visit was over a year ago. Menarche was at the age of 12 years; her last menstrual period was 4 months ago. She is on the school's gymnastics team and is currently preparing for an important competition. She is 165 cm (5 ft 6 in) tall and weighs 45 kg (99 lb); BMI is 16 kg/m2. Her temperature is 36.8°C (98.2°F), pulse is 53/min, and blood pressure is 98/64 mm Hg. Examination shows yellowish discoloration of the skin. There are bilateral soft symmetric masses below her mandible. The skin over the dorsal side of her right hand is thickened. A pregnancy test is negative. Which of the following laboratory findings are most likely present in this patient?

Question

A 20-year-old woman is brought to the physician for a routine health maintenance examination. Her last visit was over a year ago. Menarche was at the age of 12 years; her last menstrual period was 4 months ago. She is on the school's gymnastics team and is currently preparing for an important competition. She is 165 cm (5 ft 6 in) tall and weighs 45 kg (99 lb); BMI is 16 kg/m2. Her temperature is 36.8°C (98.2°F), pulse is 53/min, and blood pressure is 98/64 mm Hg. Examination shows yellowish discoloration of the skin. There are bilateral soft symmetric masses below her mandible. The skin over the dorsal side of her right hand is thickened. A pregnancy test is negative.  Which of the following laboratory findings are most likely present in this patient?

Quizplus · Accepted Answer

Eductional Objective: Functional hypothalamic amenorrhea is a common cause of secondary amenorrhea and occurs due to decreased amplitude and frequency of pulsatile gonadotropin-releasing hormone release from the hypothalamus, which in turn leads to low FSH, LH, and estrogen levels.  Causes include anorexia nervosa (eg, distorted body image, restricted diet, lanugo), excessive strenuous exercise, and chronic illness.

A 20-Year-Old Woman Is Brought to the Physician for a Routine