4. How is the wattage rating of a light bulb, with a nonlinear I-V characteristic, determined at its rated voltage of 120V?

6. According to the text, what is a key application of a strain gauge?

9. In the context of the document, what does ‘power’ measure?

10. Which of the following describes the I-V characteristics of a semiconductor diode?

A 32-year-old woman presents to the emergency department with a 1-month history of heat intolerance, a racing heart, unintentional 4-pound weight loss, and sweating. She states she is generally healthy and only takes a multivitamin. Her temperature is 100°F (37.8°C), blood pressure is 122/82 mmHg, pulse is 120/min, respirations are 17/min, and oxygen saturation is 100% on room air. Physical exam is notable for a nontender and enlarged thyroid. HEENT exam is notable for the finding shown (see image), which is mild. The patient’s urine hCG is negative. Laboratory values are notable for a TSH of 0.1 mIU/L. What is the most appropriate definitive treatment for this patient?

Potential side effects of systemic glucocorticoid use include each of the following EXCEPT:

A 42-year-old female, who loves food laden with salt, is very puzzled about her recent unexplained weight loss. She also has complaints of lethargy. She has had several recent episodes of nausea and vomiting. Because of her symptoms, she goes to her primary care physician. Upon questioning, she is surprised that her doctor asks her about salt craving but acknowledges this. On physical examination, there is a hyperpigmentation to her skin and mucous membranes. Her blood pressure is 85/60 mmHg. Her laboratory results show hyponatremia and hyperkalemia.  Her serum ACTH level is elevated.  Based on this information, which of the following conditions is the most likely diagnosis for this patient?

A 34-year-old male with Type I diabetes, presents for an acute office visit complaining of uncontrolled blood sugars, with high and low readings throughout the day and night.  When he called to make the appointment, he was advised to bring in his blood glucose log, and to check a few 3:00AM blood sugar levels.  His current daily insulin regimen is 40 units NPH insulin and 20 units of Regular insulin before breakfast, and 20 units of NPH insulin and 10 units of Regular insulin before dinner. Time 7am 11 am 5 pm 11 pm 3 am Average blood glucose mg/dL 393 210 175 140 50 Which of the following insulin adjustments is most appropriate, based on the patient’s average glucose readings?

You are asked to evaluate a 72-year-old female patient who complains of recent onset of polyuria, constipation, and nausea. Physical examination is essentially unremarkable, and laboratory studies are ordered including a complete metabolic profile and routine urinalysis.  Results of tests are as follows: Urinalysis: negative for nitrite, glucose, leukocytes, blood, ketones, and bilirubin, leukocyte esterase, protein, and urobilinogen. Metabolic profile: (abnormal results in boldtype): Serum Ca+2     13.2 (8.2-10.2 mg/dL)Serum PO4−3    1.8 (2.5-4.5 mg/dL)Serum albumin 4.0 (3.5-5.0 g/dL) The patient has normal renal function, and no other abnormalities are noted on results of complete metabolic profile.                                                          Based on these initial laboratory results, which of the following additional laboratory test results would be helpful in establishing a diagnosis of primary hyperparathyroidism?

A 6-year-old child presents for evaluation of excessively tall stature.  Diagnostic imaging with MRI scan confirms the presence of a pituitary adenoma.  Laboratory testing reveals elevated levels of growth hormone and insulin-like growth factor-1 (IGF-1).  Based on this information, which of the following conditions is the most likely diagnosis for this patient?