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1. Calculate the 10 yr CHD risk for a male smoker aged 50, with a total cholesterol of 204 mg/dL, an HDL cholesterol of 58 mg/dL and normal blood pressure (120 / 80 mmHg). Assume that the lipid values are from a fasting sample in which the VLDL cholesterol is 16 mg/dL.

please explain!

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Keith Leannon
Keith LeannonLv2
28 Sep 2019

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Related questions

A 45-year old male goes to the doctor to get his lipid profile done, the results of which are shown below. Using this information and the information from your book, answer the following questions about cholesterol.

Lipid Level(MG/DL)
Total Cholesterol 375
LDL 288
HDL 59

1) What are the types of plasma lipoproteins (name ALL of them)? What is their general role in mammalian metabolism? (2pts)

2) Describe the process by which cholesterol esters in the bloodstream enter cells. (2pts)

3) A co-worker wants to give the patient lovastatin, a potent competitive inhibitor of HMG-CoA reductase. Predict and explain the effect of this drug on serum cholesterol levels in your patient (2pts).

4) Upon further questioning, you discover that his diet and physical levels are normal. Name and describe (briefly) two classes of genetic defects in humans that could produce the blood serum cholesterol profile that your patient exhibits (4pts).

Robert is a 55 - year - old truck driver with Type 2 Diabetes. His blood sugars are uncontrolled as evidenced by (AEB) A1C >10 and he complains of increasing n umbness in his feet and fingers, frequent urination during the day and overnight. Robert has a history of hypertension and hyperlipidemia.

Ht 6´3” (1.90m) Wt 242 lb (11 0 kg) BMI 30, BP: 155/90 mm Hg

Medications (daily) : Lantis 80 units at HS, Metformin 100 0mg BID, simvastatin 40 mg, enalapril 10 mg,

Lipid profile

• TC: 228 mg/dL , TG: 545 mg/dL , HDL - C: 39 mg/dL , LDL - C: 136 mg/dL

SMBG shows shows:

Aggregate mean: 218 mg/dL, Standard deviation: 48 (n = 68) over last 30 days

Frequency – 2 x/day

Fasting ( 6 AM): 173 mg/dL, Standard deviation: 35 (n = 21)

Prebreakfast (9 AM): 248 mg/dL, Standard deviation: 30 (n = 6)

Prelunch: (1 PM): 193 mg/dL, Standard deviation: 47 (n = 17)

Predinner (6 PM): 195 mg/dL, Standard deviation: 33 (n = 11)

Bedtime (n = 9): 260 mg/dL, Standard deviation 34 (n = 13)

Range: 69 mg/dL to 304 mg/dL

Food and nutrition history

Due to his job, Robert is often away from home for extended periods of time and he eats at truck stop diners, where he selects hamburgers, fried eggs with bacon and deep fried foods; he eats large quantities of chips and beef jerky as snacks. He drinks diet soda and almost no water. On weekends, when Robert is at home, he enjoys drink ing beer (8 to 10 - 12 - oz cans) and making barbecues.

1. What observations do you have about Robert’s diet? ( 1)

2. Calculate Robert’s EER using two methods for determining Robert’s calorie requirements (show your work) (2)

3. What lifestyle factors could have inc reased the risk for Robert’s diabetes diagnosis? (2)

4. What criteria are used to Diagnose Metabolic Syndrome? Can you diagnose Metabolic Syndrome for Robert? Why or why not? (4)

5. List diabetic symptoms that Robert is showing (3)

6. Explain the pathophysiology of these symptoms (3)

7. What labs would be elevated if you suspect Robert is dehydrated? (2)

8. What is considered to be good control for BS (blood sugar) for someone with diabetes and what is considered poor control? (4)

9. Explain how Robert’s medications help control his diabetes (3)

10. Robert’s physician wants to initiate mealtime insulin injections. What dietary guidelines will you give to Robert regarding his food choices? (2)

11. What are some common causes of hypoglycemia and what w ill you recommend to Robert if he experiences hypoglycemia? (4)

Medical History:
A 31 yr old man, a two pack per day smoker, presented to the emergency department complaining of sudden-onset, 10/10 crushing substernal chest pain associated with shortness of breath and diaphoresis that began 30 min prior to arrival. He had no previous history of cardiovascular disease.
Physical exam: Height 192 cm, weight 153.8 kg, BMI 41.6 kg · m–2 (class III obesity); blood pressure 178/101 mmHg, pulse 75 beats · min–1, respiratory rate 20 breaths · min–1, temperature 36.7 ∞C; normal heart sounds, lungs clear to auscultation, normal peripheral pulses
Electrocardiogram: Normal sinus rhythm, rate 72 beats · min–1; ST-segment elevation V1-V4
Chest radiograph: Normal Blood work: Elevated cTn and CK-MB; glucose normal; blood lipids: total cholesterol 200 mg · dl–1, HDL-C 45 mg · dl–1, LDL-C 134 mg · dl–1, triglycerides 104 mg · dl–1
Chest CT: No evidence of aortic dissection Echocardiogram: Left ventricular ejection fraction 45%, hypokinesis of the anteroseptal wall, borderline left ventricular enlargement, normal diastolic function, normal cardiac valves

Diagnosis:
Acute anterior wall STEMI.

Treatment:
1. Emergent cardiac catheterization (began 46 min after initial presentation to the hospital): total occlusion of the proximal left anterior descending (LAD) coronary artery, mild diffuse narrowing of the circumflex and right coronary arteries. The LAD occlusion was treated with thrombectomy, percutaneous coronary angioplasty, and placement of a drug-eluding stent, with good result.
2. Medical treatment: Aspirin, heparin, intravenous nitroglycerin, clopidogrel, abciximab, atorvastatin, carvedilol, lisinopril, nicotine patch.
3. Nicotine dependence consultation.
4. Referral to outpatient cardiac rehabilitation. Complications: None Hospital dismissal: Occurred approximately 48 h after admission; appointments made to see primary physician and to begin outpatient cardiac rehabilitation program in 5 d; follow-up blood work, ECG, and cardiology appointment in 8 wk Dismissal medications: Carvedilol, aspirin, clopidogrel, lisinopril, nicotine patch, simvastatin

Outpatient Exercise Test Results (Performed 8 D after Hospital Dismissal)
8.0 min duration (treadmill), normal blood pressure and electrocardiographic responses, peak heart rate 164 beats · min–1, V.O2peak = 3.04 L · min−1 (20.8 ml ∑ kg−1 ∑ min−1; 47% of expected), no angina reported
Exercise Prescription:
Outpatient cardiac rehabilitation program: Began 5 d after hospital dismissal; initial evaluations included assessments of neuromuscular function (normal), depression (normal), and potential sleep apnea (abnormalBerlin questionnaire, abnormal overnight oximetry resulted in referral for a sleep consultation); meeting with registered dietitian.
Exercise prescription: Goals included weight loss, increased aerobic and muscular fitness; frequency of three supervised sessions per week in cardiac rehabilitation facility plus three or four independent sessions per week (total frequency of six or seven sessions each week); average intensity using target heart rate 130 to 140 beats · min–1 (60-70% heart rate reserve), RPE 12 to 14; high-intensity intervals (to begin 2 wk after starting cardiac rehabilitation) using RPE 17, heart rate <160 beats · min–1; duration initially set at 10 to 15 min (not including warm-up, cool-down, strength training), gradually increasing to 45 to 60 min per session; types of exercise to include outdoor or treadmill walking, elliptical trainer; resistance training (to begin 2 wk after starting cardiac rehabilitation) using free weights and weight machines, initially one set of 8 to 15 slow repetitions, exercises for the major muscle groups, two or three sessions per week; lifestyle or general physical activity including walking short distances during the day, yard work, physical activity at work (return to work as restaurant equipment installer 4 wk after myocardial infarction).

Outcomes from 11 WK of Cardiac Rehabilitation Program
Medication compliance: Excellent (self-report) Exercise training: Frequency six or seven sessions per week (two or three supervised sessions per week); aerobic exercise duration 50 to 60 min per session; aerobic interval training two or three sessions per week (initially treadmill grade walking for 30 s progressing to slow jogging on treadmill for up to 4 min, three to five high-intensity intervals per session); resistance training two or three sessions per week, two or three sets of 8 to 15 repetitions, major muscle groups. Body weight: Stopped eating fast food and desserts, had more fruit, vegetables, poultry, fish; weight loss = 20.8 kg (BMI still excessive, 33.8 kg · m–2). Repeat cardiopulmonary exercise test: 10.5 min duration (treadmill), normal blood pressure and electrocardiographic responses, peak heart rate 162 beats · min–1, V.O2peak = 4.16 L · min−1 (31.2 ml ∑ kg−1 ∑ min−1; 71% of expected), 37% increase in V.O2peak (L · min−1), no angina reported. Tobacco use: One or two cigarettes daily. Blood pressure: 126/80 mmHg. Blood lipids: Total cholesterol 126 mg · dl–1, HDL-C 33 mg · dl–1, LDL-C 80 mg · dl–1, triglycerides 65 mg · dl–1. Recommendations: Stop smoking; continue medications, exercise program, and heart-healthy eating habits; continue efforts for weight loss; return appointment with cardiac rehabilitation team in 3 mo.

Discussion:
This patient was extremely young and was fortunate to realize the importance of promptly seeking medical attention with the onset of symptoms. His hospital course included standard diagnostic testing for acute myocardial infarction with subsequent timely coronary angiography with PCI of the infarct-related artery. Fortunately he did not develop serious complications and was discharged from the hospital after only 2 d. He enrolled in outpatient cardiac rehabilitation 1 wk after his MI. Of concern, he was markedly obese and may have had obstructive sleep apnea based on his abnormal Berlin questionnaire; he was referred for further evaluation in the Sleep Clinic. His course during rehabilitation was very favorable, and he did not experience post-infarction angina. He was successful in exercise and weight loss and demonstrated a remarkable increase in aerobic capacity. His challenge will be to continue taking his medications, stop smoking completely, eat a healthy diet, maintain his exercise program, and control his other coronary risk factors.

Questions:
1. What were this patient’s coronary risk factors?

2. What clinical tests were used to make the diagnosis of an acute ST-segment elevation anterior wall myocardial infarction?

3. What classes of cardiovascular medications were prescribed for this patient?

4. Compare the two cardiopulmonary exercise tests for this patient. What were the similarities? What were the differences?

5. Review the patient’s exercise prescription and program. Were the established goals achieved? Would you alter the exercise program in any fashion?

6. How effective was the patient in controlling his coronary risk factors by the time he completed 11 wk in the outpatient cardiac rehabilitation program?

7. What is his most important remaining coronary risk factor?

8. What component of the recommendations given to him at the completion of 11 wk of cardiac rehabilitation will potentially help him in sustaining his efforts at secondary prevention?

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