Homework Help: Operations Management (Inventory Management in operating rooms for elective surgeries

 

 

Inventory Management Homework Set

 

 

 

 

 

 

You work in the administration of a major hospital in the Twin Cities. One of your tasks is the scheduling of one of the operating rooms in the hospital. The room is used for a specific elective surgery. You allocate a certain amount of time for a surgery; if the actual duration of the surgery exceeds the allocated time, the surgery scheduled next has to start later, and this usually results in overtime at the end of the day where surgery personnel have to stay late into the evening hours. If the actual duration of the surgery is less than the allocated time, the operating rooms remains idle until the next scheduled surgery, since the required resources for the surgery to start (staff, surgeon, equipment, patient) do not become available earlier.

 

 

 

You currently allocate 90 minutes for each surgery (from the beginning until the room is ready for the next patient). However, surgeons and personnel have voiced their opinion that they believe this is not enough time – too often do they run over, and too often do they have to stay late to resolve schedule overruns. The higher levels of the administration agree, since overtime work is generally associated with higher costs as well as possibly worse patient outcomes. You decide to manage this process more rigorously, and download data on 200 completed surgeries that contains information on the actual durations of the surgeries (beginning until the room is ready again), as well as some data on which surgery team was involved, and some patient specific data (Body Mass Index, or BMI of patient), see Surgery Data.xls.

 

 

 

 

 

Question 1: Your higher level managers in the hospital tell you that surgeries should finish within the allocated time 99% of all times. Calculate the amount of time you should allocate per surgery to make that happen. How much safety buffer is included in this number? (Note that the safety buffer is the difference between your allocated time, and the time it would take to complete the surgery on average)

 

 

Question 2: You try to understand the precise cost factors associated with allocating too much and too little time to a surgery. While opinions diverge, most of your colleagues tell you that a minute of being overtime is about 3 times as bad as a minute of finishing early. Can you use this information to revise how much total time (and buffer time) you would allocate to a surgery?

 

 

Question 3: One of the surgery teams (let’s leave it unspecified which one!) likes to schedule surgeries in continuous blocks. They tell you that they can handle three surgeries in a row; according to them, an advantage would be that all resources to start the next surgery early, in case they are done early, would be available. How much time would you allocate to such a block of three surgeries in a row (under the cost information from Q2)? Compare this time to the time you would normally allocate to three surgeries made by three different teams. How much buffer time can you save by blocking surgeries this way?

 

 

Question 4: The dataset contains both surgery team and patient level information. You get a sense that – since this information is available upfront – you could create better estimates on how long a surgery will take by making use of this information. Using regression analysis, can you show whether or not the specific surgery team involved and the body mass index of the patient influence the duration of a particular surgery? By how many minutes would you be able to reduce the buffer time in a surgery (under the cost information from Q2) by making use of this information?

 

 

DATA SET

 

Surgery ID Surgery Duration Surgery Team BMI of Patient
1 49 3 29
2 46 2 29
3 93 2 28
4 85 1 24
5 93 2 30
6 157 4 29
7 100 2 28
8 70 3 24
9 64 2 23
10 99 1 24
11 131 3 23
12 66 4 22
13 108 4 31
14 86 4 18
15 117 2 27
16 72 4 22
17 127 2 28
18 127 1 20
19 86 2 25
20 93 4 25
21 111 4 18
22 114 4 36
23 91 2 28
24 83 2 23
25 100 1 25
26 72 3 22
27 72 2 15
28 109 4 28
29 91 2 21
30 124 2 27
31 27 1 24
32 78 1 17
33 190 1 37
34 57 3 18
35 97 3 15
36 31 1 25
37 80 4 29
38 55 3 23
39 116 3 33
40 92 2 21
41 74 1 20
42 129 2 27
43 39 2 29
44 42 3 32
45 89 2 30
46 115 1 24
47 84 1 20
48 107 4 37
49 120 4 25
50 96 3 16
51 106 4 27
52 124 1 22
53 54 2 19
54 135 3 32
55 82 2 24
56 88 1 22
57 66 3 27
58 84 1 27
59 69 2 23
60 71 1 25
61 87 3 24
62 149 2 29
63 125 1 21
64 92 2 20
65 21 4 22
66 90 1 24
67 55 4 20
68 126 1 28
69 126 3 19
70 115 4 29
71 123 3 27
72 62 3 24
73 96 3 25
74 79 2 26
75 79 4 23
76 91 1 12
77 37 2 17
78 61 3 22
79 93 4 29
80 76 3 20
81 73 4 20
82 105 1 35
83 72 3 26
84 105 3 29
85 107 2 25
86 92 3 25
87 94 1 13
88 102 4 20
89 91 3 18
90 42 4 19
91 103 1 21
92 111 3 20
93 109 1 22
94 128 3 23
95 115 4 29
96 67 3 25
97 75 3 13
98 85 2 24
99 117 2 21
100 152 2 24
101 96 2 25
102 28 1 20
103 124 4 21
104 18 2 24
105 85 4 25
106 114 4 22
107 43 4 27
108 109 2 23
109 25 4 27
110 67 4 19
111 113 1 25
112 67 4 30
113 116 4 29
114 32 4 12
115 42 2 29
116 153 1 29
117 32 2 33
118 63 3 18
119 102 3 22
120 122 1 26
121 68 1 26
122 110 4 31
123 38 3 30
124 158 1 31
125 63 2 28
126 102 1 32
127 92 4 22
128 113 2 17
129 129 4 18
130 154 2 20
131 87 4 24
132 97 1 24
133 122 1 22
134 46 2 25
135 110 2 26
136 33 3 25
137 104 3 28
138 36 3 25
139 116 2 21
140 69 3 29
141 70 3 20
142 115 3 27
143 123 3 28
144 174 1 34
145 120 2 27
146 120 1 24
147 101 4 30
148 75 2 24
149 72 3 20
150 124 4 23
151 56 2 20
152 103 1 29
153 86 1 21
154 55 4 17
155 65 2 19
156 86 2 28
157 175 2 36
158 67 2 27
159 79 2 22
160 29 4 21
161 82 2 26
162 132 2 28
163 72 1 13
164 144 2 28
165 132 1 26
166 117 1 28
167 63 3 27
168 58 4 32
169 88 3 25
170 108 3 23
171 80 2 33
172 103 4 21
173 149 1 25
174 102 3 23
175 138 1 31
176 77 4 29
177 115 4 21
178 134 4 20
179 81 4 16
180 99 2 25
181 76 2 24
182 91 4 22
183 138 1 24
184 42 2 22
185 104 3 27
186 66 3 30
187 109 4 35
188 103 4 19
189 69 3 21
190 81 3 26
191 122 1 27
192 77 1 24
193 55 1 26
194 60 4 19
195 105 1 29
196 86 2 22
197 75 4 21
198 49 4 14
199 73 3 25
200 93 2 28

 

 

 

 

Solution:

15% off for this assignment.

Our Prices Start at $11.99. As Our First Client, Use Coupon Code GET15 to claim 15% Discount This Month!!

Why US?

100% Confidentiality

Information about customers is confidential and never disclosed to third parties.

Timely Delivery

No missed deadlines – 97% of assignments are completed in time.

Original Writing

We complete all papers from scratch. You can get a plagiarism report.

Money Back

If you are convinced that our writer has not followed your requirements, feel free to ask for a refund.

WeCreativez WhatsApp Support
Our customer support team is here to answer your questions. Ask us anything!
👋 Hi, how can I help?